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Finding the Fourth Proportional to 532,190.60, 798,545.10 and 405,787.40

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Solution

The fourth proportional to 532,190.60, 798,545.10 and 405,787.40 is: 608,878.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,190.60 : 798,545.10 = 405,787.40 : x
  2. Step 2: Convert to fraction form
    532,190.60/798,545.10 = 405,787.40/x
  3. Step 3: Cross multiply
    532,190.60x = 798,545.10 × 405,787.40
  4. Step 4: Simplify right side
    532,190.60x = 324,039,539,911.74
  5. Step 5: Solve for x
    x = 324,039,539,911.74/532,190.60
  6. Step 6: Final answer
    x = 608,878.74

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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.