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Finding the Fourth Proportional to 266,032.20, 398,529.90 and 160,537.80

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Solution

The fourth proportional to 266,032.20, 398,529.90 and 160,537.80 is: 240,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,032.20 : 398,529.90 = 160,537.80 : x
  2. Step 2: Convert to fraction form
    266,032.20/398,529.90 = 160,537.80/x
  3. Step 3: Cross multiply
    266,032.20x = 398,529.90 × 160,537.80
  4. Step 4: Simplify right side
    266,032.20x = 63,979,113,380.22
  5. Step 5: Solve for x
    x = 63,979,113,380.22/266,032.20
  6. Step 6: Final answer
    x = 240,493.87

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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.