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Finding the Fourth Proportional to 573,404.61, 791,318.66 and 315,301.15

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Solution

The fourth proportional to 573,404.61, 791,318.66 and 315,301.15 is: 435,126.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,404.61 : 791,318.66 = 315,301.15 : x
  2. Step 2: Convert to fraction form
    573,404.61/791,318.66 = 315,301.15/x
  3. Step 3: Cross multiply
    573,404.61x = 791,318.66 × 315,301.15
  4. Step 4: Simplify right side
    573,404.61x = 249,503,679,959.66
  5. Step 5: Solve for x
    x = 249,503,679,959.66/573,404.61
  6. Step 6: Final answer
    x = 435,126.74

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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.