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Finding the Fourth Proportional to 527,799.65, 728,355.56 and 298,348.83

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Solution

The fourth proportional to 527,799.65, 728,355.56 and 298,348.83 is: 411,716.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,799.65 : 728,355.56 = 298,348.83 : x
  2. Step 2: Convert to fraction form
    527,799.65/728,355.56 = 298,348.83/x
  3. Step 3: Cross multiply
    527,799.65x = 728,355.56 × 298,348.83
  4. Step 4: Simplify right side
    527,799.65x = 217,304,027,658.25
  5. Step 5: Solve for x
    x = 217,304,027,658.25/527,799.65
  6. Step 6: Final answer
    x = 411,716.89

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1.5x scale

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.