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Finding the Fourth Proportional to 371,086.57, 557,396.52 and 354,914.92

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Solution

The fourth proportional to 371,086.57, 557,396.52 and 354,914.92 is: 533,105.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,086.57 : 557,396.52 = 354,914.92 : x
  2. Step 2: Convert to fraction form
    371,086.57/557,396.52 = 354,914.92/x
  3. Step 3: Cross multiply
    371,086.57x = 557,396.52 × 354,914.92
  4. Step 4: Simplify right side
    371,086.57x = 197,828,341,304.08
  5. Step 5: Solve for x
    x = 197,828,341,304.08/371,086.57
  6. Step 6: Final answer
    x = 533,105.63

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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.