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Finding the Fourth Proportional to 397,000.76, 595,499.70 and 172,331.87

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Solution

The fourth proportional to 397,000.76, 595,499.70 and 172,331.87 is: 258,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,000.76 : 595,499.70 = 172,331.87 : x
  2. Step 2: Convert to fraction form
    397,000.76/595,499.70 = 172,331.87/x
  3. Step 3: Cross multiply
    397,000.76x = 595,499.70 × 172,331.87
  4. Step 4: Simplify right side
    397,000.76x = 102,623,576,885.44
  5. Step 5: Solve for x
    x = 102,623,576,885.44/397,000.76
  6. Step 6: Final answer
    x = 258,497.18

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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.