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Finding the Fourth Proportional to 393,589.92, 590,794.56 and 348,895.20

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Solution

The fourth proportional to 393,589.92, 590,794.56 and 348,895.20 is: 523,705.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,589.92 : 590,794.56 = 348,895.20 : x
  2. Step 2: Convert to fraction form
    393,589.92/590,794.56 = 348,895.20/x
  3. Step 3: Cross multiply
    393,589.92x = 590,794.56 × 348,895.20
  4. Step 4: Simplify right side
    393,589.92x = 206,125,386,170.11
  5. Step 5: Solve for x
    x = 206,125,386,170.11/393,589.92
  6. Step 6: Final answer
    x = 523,705.96

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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.