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Finding the Fourth Proportional to 375,200.28, 518,230.80 and 273,063.78

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Solution

The fourth proportional to 375,200.28, 518,230.80 and 273,063.78 is: 377,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,200.28 : 518,230.80 = 273,063.78 : x
  2. Step 2: Convert to fraction form
    375,200.28/518,230.80 = 273,063.78/x
  3. Step 3: Cross multiply
    375,200.28x = 518,230.80 × 273,063.78
  4. Step 4: Simplify right side
    375,200.28x = 141,510,061,160.42
  5. Step 5: Solve for x
    x = 141,510,061,160.42/375,200.28
  6. Step 6: Final answer
    x = 377,158.73

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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.