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Finding the Fourth Proportional to 399,225.60, 597,963.60 and 346,737.60

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Solution

The fourth proportional to 399,225.60, 597,963.60 and 346,737.60 is: 519,346.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,225.60 : 597,963.60 = 346,737.60 : x
  2. Step 2: Convert to fraction form
    399,225.60/597,963.60 = 346,737.60/x
  3. Step 3: Cross multiply
    399,225.60x = 597,963.60 × 346,737.60
  4. Step 4: Simplify right side
    399,225.60x = 207,336,463,551.36
  5. Step 5: Solve for x
    x = 207,336,463,551.36/399,225.60
  6. Step 6: Final answer
    x = 519,346.61

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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.