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Finding the Fourth Proportional to 318,967.62, 440,174.30 and 175,726.42

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Solution

The fourth proportional to 318,967.62, 440,174.30 and 175,726.42 is: 242,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,967.62 : 440,174.30 = 175,726.42 : x
  2. Step 2: Convert to fraction form
    318,967.62/440,174.30 = 175,726.42/x
  3. Step 3: Cross multiply
    318,967.62x = 440,174.30 × 175,726.42
  4. Step 4: Simplify right side
    318,967.62x = 77,350,253,915.01
  5. Step 5: Solve for x
    x = 77,350,253,915.01/318,967.62
  6. Step 6: Final answer
    x = 242,501.90

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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.