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Finding the Fourth Proportional to 331,553.10, 497,329.65 and 82,235.10

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Solution

The fourth proportional to 331,553.10, 497,329.65 and 82,235.10 is: 123,352.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,553.10 : 497,329.65 = 82,235.10 : x
  2. Step 2: Convert to fraction form
    331,553.10/497,329.65 = 82,235.10/x
  3. Step 3: Cross multiply
    331,553.10x = 497,329.65 × 82,235.10
  4. Step 4: Simplify right side
    331,553.10x = 40,897,953,500.72
  5. Step 5: Solve for x
    x = 40,897,953,500.72/331,553.10
  6. Step 6: Final answer
    x = 123,352.65

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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.