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Finding the Fourth Proportional to 573,254.67, 791,101.50 and 315,142.50

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Solution

The fourth proportional to 573,254.67, 791,101.50 and 315,142.50 is: 434,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,254.67 : 791,101.50 = 315,142.50 : x
  2. Step 2: Convert to fraction form
    573,254.67/791,101.50 = 315,142.50/x
  3. Step 3: Cross multiply
    573,254.67x = 791,101.50 × 315,142.50
  4. Step 4: Simplify right side
    573,254.67x = 249,309,704,463.75
  5. Step 5: Solve for x
    x = 249,309,704,463.75/573,254.67
  6. Step 6: Final answer
    x = 434,902.18

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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.