Home / 949,388,738.10-1,424,083,107.15-639,452,346.90

Finding the Fourth Proportional to 949,388,738.10, 1,424,083,107.15 and 639,452,346.90

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Solution

The fourth proportional to 949,388,738.10, 1,424,083,107.15 and 639,452,346.90 is: 959,178,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,388,738.10 : 1,424,083,107.15 = 639,452,346.90 : x
  2. Step 2: Convert to fraction form
    949,388,738.10/1,424,083,107.15 = 639,452,346.90/x
  3. Step 3: Cross multiply
    949,388,738.10x = 1,424,083,107.15 × 639,452,346.90
  4. Step 4: Simplify right side
    949,388,738.10x = 910,633,285,047,711,744
  5. Step 5: Solve for x
    x = 910,633,285,047,711,744/949,388,738.10
  6. Step 6: Final answer
    x = 959,178,520.35

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Half scale
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Double scale
Find fourth proportional to 949,388,739.10, 1,424,083,108.65 and 639,452,347.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.