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Finding the Fourth Proportional to 438,158.72, 604,654.40 and 247,234.24

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Solution

The fourth proportional to 438,158.72, 604,654.40 and 247,234.24 is: 341,180.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,158.72 : 604,654.40 = 247,234.24 : x
  2. Step 2: Convert to fraction form
    438,158.72/604,654.40 = 247,234.24/x
  3. Step 3: Cross multiply
    438,158.72x = 604,654.40 × 247,234.24
  4. Step 4: Simplify right side
    438,158.72x = 149,491,271,046.66
  5. Step 5: Solve for x
    x = 149,491,271,046.66/438,158.72
  6. Step 6: Final answer
    x = 341,180.64

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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.