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Finding the Fourth Proportional to 283,577.58, 391,354.54 and 156,253.14

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Solution

The fourth proportional to 283,577.58, 391,354.54 and 156,253.14 is: 215,638.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,577.58 : 391,354.54 = 156,253.14 : x
  2. Step 2: Convert to fraction form
    283,577.58/391,354.54 = 156,253.14/x
  3. Step 3: Cross multiply
    283,577.58x = 391,354.54 × 156,253.14
  4. Step 4: Simplify right side
    283,577.58x = 61,150,375,728.26
  5. Step 5: Solve for x
    x = 61,150,375,728.26/283,577.58
  6. Step 6: Final answer
    x = 215,638.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.