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Finding the Fourth Proportional to 283,597.96, 391,366.50 and 156,270.92

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Solution

The fourth proportional to 283,597.96, 391,366.50 and 156,270.92 is: 215,654.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,597.96 : 391,366.50 = 156,270.92 : x
  2. Step 2: Convert to fraction form
    283,597.96/391,366.50 = 156,270.92/x
  3. Step 3: Cross multiply
    283,597.96x = 391,366.50 × 156,270.92
  4. Step 4: Simplify right side
    283,597.96x = 61,159,203,012.18
  5. Step 5: Solve for x
    x = 61,159,203,012.18/283,597.96
  6. Step 6: Final answer
    x = 215,654.59

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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.