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Finding the Fourth Proportional to 499,481.40, 749,222.10 and 162,553.80

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Solution

The fourth proportional to 499,481.40, 749,222.10 and 162,553.80 is: 243,830.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,481.40 : 749,222.10 = 162,553.80 : x
  2. Step 2: Convert to fraction form
    499,481.40/749,222.10 = 162,553.80/x
  3. Step 3: Cross multiply
    499,481.40x = 749,222.10 × 162,553.80
  4. Step 4: Simplify right side
    499,481.40x = 121,788,899,398.98
  5. Step 5: Solve for x
    x = 121,788,899,398.98/499,481.40
  6. Step 6: Final answer
    x = 243,830.70

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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.