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Finding the Fourth Proportional to 442,859.13, 611,179.43 and 251,861.13

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Solution

The fourth proportional to 442,859.13, 611,179.43 and 251,861.13 is: 347,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,859.13 : 611,179.43 = 251,861.13 : x
  2. Step 2: Convert to fraction form
    442,859.13/611,179.43 = 251,861.13/x
  3. Step 3: Cross multiply
    442,859.13x = 611,179.43 × 251,861.13
  4. Step 4: Simplify right side
    442,859.13x = 153,932,340,613.25
  5. Step 5: Solve for x
    x = 153,932,340,613.25/442,859.13
  6. Step 6: Final answer
    x = 347,587.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.