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Finding the Fourth Proportional to 713,545.28, 1,070,496.42 and 503,593.28

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Solution

The fourth proportional to 713,545.28, 1,070,496.42 and 503,593.28 is: 755,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,545.28 : 1,070,496.42 = 503,593.28 : x
  2. Step 2: Convert to fraction form
    713,545.28/1,070,496.42 = 503,593.28/x
  3. Step 3: Cross multiply
    713,545.28x = 1,070,496.42 × 503,593.28
  4. Step 4: Simplify right side
    713,545.28x = 539,094,803,376.06
  5. Step 5: Solve for x
    x = 539,094,803,376.06/713,545.28
  6. Step 6: Final answer
    x = 755,515.90

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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.