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Finding the Fourth Proportional to 672,639.48, 927,671.42 and 568,374.24

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Solution

The fourth proportional to 672,639.48, 927,671.42 and 568,374.24 is: 783,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,639.48 : 927,671.42 = 568,374.24 : x
  2. Step 2: Convert to fraction form
    672,639.48/927,671.42 = 568,374.24/x
  3. Step 3: Cross multiply
    672,639.48x = 927,671.42 × 568,374.24
  4. Step 4: Simplify right side
    672,639.48x = 527,264,535,470.35
  5. Step 5: Solve for x
    x = 527,264,535,470.35/672,639.48
  6. Step 6: Final answer
    x = 783,873.90

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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.