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Finding the Fourth Proportional to 573,306.85, 791,172.30 and 315,194.97

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Solution

The fourth proportional to 573,306.85, 791,172.30 and 315,194.97 is: 434,973.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,306.85 : 791,172.30 = 315,194.97 : x
  2. Step 2: Convert to fraction form
    573,306.85/791,172.30 = 315,194.97/x
  3. Step 3: Cross multiply
    573,306.85x = 791,172.30 × 315,194.97
  4. Step 4: Simplify right side
    573,306.85x = 249,373,529,363.33
  5. Step 5: Solve for x
    x = 249,373,529,363.33/573,306.85
  6. Step 6: Final answer
    x = 434,973.92

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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.