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Finding the Fourth Proportional to 570,761.06, 787,648.29 and 329,042.48

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Solution

The fourth proportional to 570,761.06, 787,648.29 and 329,042.48 is: 454,077.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,761.06 : 787,648.29 = 329,042.48 : x
  2. Step 2: Convert to fraction form
    570,761.06/787,648.29 = 329,042.48/x
  3. Step 3: Cross multiply
    570,761.06x = 787,648.29 × 329,042.48
  4. Step 4: Simplify right side
    570,761.06x = 259,169,745,562.85
  5. Step 5: Solve for x
    x = 259,169,745,562.85/570,761.06
  6. Step 6: Final answer
    x = 454,077.49

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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.