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Finding the Fourth Proportional to 325,486.71, 488,262.36 and 136,006.31

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Solution

The fourth proportional to 325,486.71, 488,262.36 and 136,006.31 is: 204,022.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,486.71 : 488,262.36 = 136,006.31 : x
  2. Step 2: Convert to fraction form
    325,486.71/488,262.36 = 136,006.31/x
  3. Step 3: Cross multiply
    325,486.71x = 488,262.36 × 136,006.31
  4. Step 4: Simplify right side
    325,486.71x = 66,406,761,215.46
  5. Step 5: Solve for x
    x = 66,406,761,215.46/325,486.71
  6. Step 6: Final answer
    x = 204,022.96

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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.