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Finding the Fourth Proportional to 331,464.76, 497,196.84 and 82,146.76

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Solution

The fourth proportional to 331,464.76, 497,196.84 and 82,146.76 is: 123,220.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,464.76 : 497,196.84 = 82,146.76 : x
  2. Step 2: Convert to fraction form
    331,464.76/497,196.84 = 82,146.76/x
  3. Step 3: Cross multiply
    331,464.76x = 497,196.84 × 82,146.76
  4. Step 4: Simplify right side
    331,464.76x = 40,843,109,488.24
  5. Step 5: Solve for x
    x = 40,843,109,488.24/331,464.76
  6. Step 6: Final answer
    x = 123,220.07

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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.