Home / 732,078.30-1,098,117.45-519,501.90

Finding the Fourth Proportional to 732,078.30, 1,098,117.45 and 519,501.90

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Solution

The fourth proportional to 732,078.30, 1,098,117.45 and 519,501.90 is: 779,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,078.30 : 1,098,117.45 = 519,501.90 : x
  2. Step 2: Convert to fraction form
    732,078.30/1,098,117.45 = 519,501.90/x
  3. Step 3: Cross multiply
    732,078.30x = 1,098,117.45 × 519,501.90
  4. Step 4: Simplify right side
    732,078.30x = 570,474,101,698.16
  5. Step 5: Solve for x
    x = 570,474,101,698.16/732,078.30
  6. Step 6: Final answer
    x = 779,252.85

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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.