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Finding the Fourth Proportional to 573,642.53, 791,628.28 and 315,545.92

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Solution

The fourth proportional to 573,642.53, 791,628.28 and 315,545.92 is: 435,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,642.53 : 791,628.28 = 315,545.92 : x
  2. Step 2: Convert to fraction form
    573,642.53/791,628.28 = 315,545.92/x
  3. Step 3: Cross multiply
    573,642.53x = 791,628.28 × 315,545.92
  4. Step 4: Simplify right side
    573,642.53x = 249,795,073,910.62
  5. Step 5: Solve for x
    x = 249,795,073,910.62/573,642.53
  6. Step 6: Final answer
    x = 435,454.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.