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Finding the Fourth Proportional to 417,355.92, 624,634.20 and 342,473.04

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Solution

The fourth proportional to 417,355.92, 624,634.20 and 342,473.04 is: 512,561.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,355.92 : 624,634.20 = 342,473.04 : x
  2. Step 2: Convert to fraction form
    417,355.92/624,634.20 = 342,473.04/x
  3. Step 3: Cross multiply
    417,355.92x = 624,634.20 × 342,473.04
  4. Step 4: Simplify right side
    417,355.92x = 213,920,373,361.97
  5. Step 5: Solve for x
    x = 213,920,373,361.97/417,355.92
  6. Step 6: Final answer
    x = 512,561.01

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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.