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Finding the Fourth Proportional to 749,872.87, 1,124,978.12 and 237,568.90

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Solution

The fourth proportional to 749,872.87, 1,124,978.12 and 237,568.90 is: 356,406.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,872.87 : 1,124,978.12 = 237,568.90 : x
  2. Step 2: Convert to fraction form
    749,872.87/1,124,978.12 = 237,568.90/x
  3. Step 3: Cross multiply
    749,872.87x = 1,124,978.12 × 237,568.90
  4. Step 4: Simplify right side
    749,872.87x = 267,259,814,828.72
  5. Step 5: Solve for x
    x = 267,259,814,828.72/749,872.87
  6. Step 6: Final answer
    x = 356,406.83

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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.