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Finding the Fourth Proportional to 572,969.43, 790,695.17 and 314,862.42

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Solution

The fourth proportional to 572,969.43, 790,695.17 and 314,862.42 is: 434,508.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,969.43 : 790,695.17 = 314,862.42 : x
  2. Step 2: Convert to fraction form
    572,969.43/790,695.17 = 314,862.42/x
  3. Step 3: Cross multiply
    572,969.43x = 790,695.17 × 314,862.42
  4. Step 4: Simplify right side
    572,969.43x = 248,960,193,134.20
  5. Step 5: Solve for x
    x = 248,960,193,134.20/572,969.43
  6. Step 6: Final answer
    x = 434,508.68

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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.