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Finding the Fourth Proportional to 641,762.73, 885,597.44 and 351,318.12

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Solution

The fourth proportional to 641,762.73, 885,597.44 and 351,318.12 is: 484,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,762.73 : 885,597.44 = 351,318.12 : x
  2. Step 2: Convert to fraction form
    641,762.73/885,597.44 = 351,318.12/x
  3. Step 3: Cross multiply
    641,762.73x = 885,597.44 × 351,318.12
  4. Step 4: Simplify right side
    641,762.73x = 311,126,427,697.61
  5. Step 5: Solve for x
    x = 311,126,427,697.61/641,762.73
  6. Step 6: Final answer
    x = 484,799.78

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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.