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Finding the Fourth Proportional to 451,191.76, 676,938.37 and 147,599.76

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Solution

The fourth proportional to 451,191.76, 676,938.37 and 147,599.76 is: 221,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,191.76 : 676,938.37 = 147,599.76 : x
  2. Step 2: Convert to fraction form
    451,191.76/676,938.37 = 147,599.76/x
  3. Step 3: Cross multiply
    451,191.76x = 676,938.37 × 147,599.76
  4. Step 4: Simplify right side
    451,191.76x = 99,915,940,000.41
  5. Step 5: Solve for x
    x = 99,915,940,000.41/451,191.76
  6. Step 6: Final answer
    x = 221,448.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.