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Finding the Fourth Proportional to 291,712.20, 436,912.20 and 173,614.20

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Solution

The fourth proportional to 291,712.20, 436,912.20 and 173,614.20 is: 260,030.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,712.20 : 436,912.20 = 173,614.20 : x
  2. Step 2: Convert to fraction form
    291,712.20/436,912.20 = 173,614.20/x
  3. Step 3: Cross multiply
    291,712.20x = 436,912.20 × 173,614.20
  4. Step 4: Simplify right side
    291,712.20x = 75,854,162,073.24
  5. Step 5: Solve for x
    x = 75,854,162,073.24/291,712.20
  6. Step 6: Final answer
    x = 260,030.82

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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.