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Finding the Fourth Proportional to 546,113.87, 819,451.49 and 418,847.73

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Solution

The fourth proportional to 546,113.87, 819,451.49 and 418,847.73 is: 628,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,113.87 : 819,451.49 = 418,847.73 : x
  2. Step 2: Convert to fraction form
    546,113.87/819,451.49 = 418,847.73/x
  3. Step 3: Cross multiply
    546,113.87x = 819,451.49 × 418,847.73
  4. Step 4: Simplify right side
    546,113.87x = 343,225,391,264.44
  5. Step 5: Solve for x
    x = 343,225,391,264.44/546,113.87
  6. Step 6: Final answer
    x = 628,486.86

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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.