Home / 830,063.10-1,246,261.05-515,135.10

Finding the Fourth Proportional to 830,063.10, 1,246,261.05 and 515,135.10

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Solution

The fourth proportional to 830,063.10, 1,246,261.05 and 515,135.10 is: 773,426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,063.10 : 1,246,261.05 = 515,135.10 : x
  2. Step 2: Convert to fraction form
    830,063.10/1,246,261.05 = 515,135.10/x
  3. Step 3: Cross multiply
    830,063.10x = 1,246,261.05 × 515,135.10
  4. Step 4: Simplify right side
    830,063.10x = 641,992,810,617.86
  5. Step 5: Solve for x
    x = 641,992,810,617.86/830,063.10
  6. Step 6: Final answer
    x = 773,426.51

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Double scale
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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.