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Finding the Fourth Proportional to 573,139.60, 860,098.20 and 372,972.40

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Solution

The fourth proportional to 573,139.60, 860,098.20 and 372,972.40 is: 559,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,139.60 : 860,098.20 = 372,972.40 : x
  2. Step 2: Convert to fraction form
    573,139.60/860,098.20 = 372,972.40/x
  3. Step 3: Cross multiply
    573,139.60x = 860,098.20 × 372,972.40
  4. Step 4: Simplify right side
    573,139.60x = 320,792,889,889.68
  5. Step 5: Solve for x
    x = 320,792,889,889.68/573,139.60
  6. Step 6: Final answer
    x = 559,711.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.