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Finding the Fourth Proportional to 391,282.00, 587,123.17 and 186,348.67

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Solution

The fourth proportional to 391,282.00, 587,123.17 and 186,348.67 is: 279,618.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,282.00 : 587,123.17 = 186,348.67 : x
  2. Step 2: Convert to fraction form
    391,282.00/587,123.17 = 186,348.67/x
  3. Step 3: Cross multiply
    391,282.00x = 587,123.17 × 186,348.67
  4. Step 4: Simplify right side
    391,282.00x = 109,409,619,922.00
  5. Step 5: Solve for x
    x = 109,409,619,922.00/391,282.00
  6. Step 6: Final answer
    x = 279,618.33

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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.