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Finding the Fourth Proportional to 435,491.39, 653,236.84 and 135,997.63

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Solution

The fourth proportional to 435,491.39, 653,236.84 and 135,997.63 is: 203,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,491.39 : 653,236.84 = 135,997.63 : x
  2. Step 2: Convert to fraction form
    435,491.39/653,236.84 = 135,997.63/x
  3. Step 3: Cross multiply
    435,491.39x = 653,236.84 × 135,997.63
  4. Step 4: Simplify right side
    435,491.39x = 88,838,662,068.69
  5. Step 5: Solve for x
    x = 88,838,662,068.69/435,491.39
  6. Step 6: Final answer
    x = 203,996.37

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Similar ratio
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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.