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Finding the Fourth Proportional to 318,149.46, 439,000.53 and 187,249.27

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Solution

The fourth proportional to 318,149.46, 439,000.53 and 187,249.27 is: 258,377.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,149.46 : 439,000.53 = 187,249.27 : x
  2. Step 2: Convert to fraction form
    318,149.46/439,000.53 = 187,249.27/x
  3. Step 3: Cross multiply
    318,149.46x = 439,000.53 × 187,249.27
  4. Step 4: Simplify right side
    318,149.46x = 82,202,528,772.11
  5. Step 5: Solve for x
    x = 82,202,528,772.11/318,149.46
  6. Step 6: Final answer
    x = 258,377.08

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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.