Home / 1,386,149.10-2,079,588.15-439,518.30

Finding the Fourth Proportional to 1,386,149.10, 2,079,588.15 and 439,518.30

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Solution

The fourth proportional to 1,386,149.10, 2,079,588.15 and 439,518.30 is: 659,393.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,149.10 : 2,079,588.15 = 439,518.30 : x
  2. Step 2: Convert to fraction form
    1,386,149.10/2,079,588.15 = 439,518.30/x
  3. Step 3: Cross multiply
    1,386,149.10x = 2,079,588.15 × 439,518.30
  4. Step 4: Simplify right side
    1,386,149.10x = 914,017,048,388.15
  5. Step 5: Solve for x
    x = 914,017,048,388.15/1,386,149.10
  6. Step 6: Final answer
    x = 659,393.03

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Double scale
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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.