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Finding the Fourth Proportional to 283,353, 391,027.14 and 156,028.29

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Solution

The fourth proportional to 283,353, 391,027.14 and 156,028.29 is: 215,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,353 : 391,027.14 = 156,028.29 : x
  2. Step 2: Convert to fraction form
    283,353/391,027.14 = 156,028.29/x
  3. Step 3: Cross multiply
    283,353x = 391,027.14 × 156,028.29
  4. Step 4: Simplify right side
    283,353x = 61,011,295,997.79
  5. Step 5: Solve for x
    x = 61,011,295,997.79/283,353
  6. Step 6: Final answer
    x = 215,319.04

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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.