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Finding the Fourth Proportional to 564,046.80, 778,335.12 and 322,281.24

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Solution

The fourth proportional to 564,046.80, 778,335.12 and 322,281.24 is: 444,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,046.80 : 778,335.12 = 322,281.24 : x
  2. Step 2: Convert to fraction form
    564,046.80/778,335.12 = 322,281.24/x
  3. Step 3: Cross multiply
    564,046.80x = 778,335.12 × 322,281.24
  4. Step 4: Simplify right side
    564,046.80x = 250,842,807,609.15
  5. Step 5: Solve for x
    x = 250,842,807,609.15/564,046.80
  6. Step 6: Final answer
    x = 444,719.85

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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.