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Finding the Fourth Proportional to 573,487.74, 791,432.94 and 315,375.22

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Solution

The fourth proportional to 573,487.74, 791,432.94 and 315,375.22 is: 435,228.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,487.74 : 791,432.94 = 315,375.22 : x
  2. Step 2: Convert to fraction form
    573,487.74/791,432.94 = 315,375.22/x
  3. Step 3: Cross multiply
    573,487.74x = 791,432.94 × 315,375.22
  4. Step 4: Simplify right side
    573,487.74x = 249,598,337,567.75
  5. Step 5: Solve for x
    x = 249,598,337,567.75/573,487.74
  6. Step 6: Final answer
    x = 435,228.72

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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.