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Finding the Fourth Proportional to 357,517.32, 493,694.14 and 266,715.58

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Solution

The fourth proportional to 357,517.32, 493,694.14 and 266,715.58 is: 368,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,517.32 : 493,694.14 = 266,715.58 : x
  2. Step 2: Convert to fraction form
    357,517.32/493,694.14 = 266,715.58/x
  3. Step 3: Cross multiply
    357,517.32x = 493,694.14 × 266,715.58
  4. Step 4: Simplify right side
    357,517.32x = 131,675,918,892.70
  5. Step 5: Solve for x
    x = 131,675,918,892.70/357,517.32
  6. Step 6: Final answer
    x = 368,306.41

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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.