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Finding the Fourth Proportional to 573,612.70, 860,419.05 and 551,839.90

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Solution

The fourth proportional to 573,612.70, 860,419.05 and 551,839.90 is: 827,759.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,612.70 : 860,419.05 = 551,839.90 : x
  2. Step 2: Convert to fraction form
    573,612.70/860,419.05 = 551,839.90/x
  3. Step 3: Cross multiply
    573,612.70x = 860,419.05 × 551,839.90
  4. Step 4: Simplify right side
    573,612.70x = 474,813,562,510.10
  5. Step 5: Solve for x
    x = 474,813,562,510.10/573,612.70
  6. Step 6: Final answer
    x = 827,759.85

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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.