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Finding the Fourth Proportional to 283,889.07, 391,767.03 and 156,572.87

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Solution

The fourth proportional to 283,889.07, 391,767.03 and 156,572.87 is: 216,070.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,889.07 : 391,767.03 = 156,572.87 : x
  2. Step 2: Convert to fraction form
    283,889.07/391,767.03 = 156,572.87/x
  3. Step 3: Cross multiply
    283,889.07x = 391,767.03 × 156,572.87
  4. Step 4: Simplify right side
    283,889.07x = 61,340,086,299.64
  5. Step 5: Solve for x
    x = 61,340,086,299.64/283,889.07
  6. Step 6: Final answer
    x = 216,070.62

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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.