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Finding the Fourth Proportional to 283,841.46, 391,686.80 and 161,330.62

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Solution

The fourth proportional to 283,841.46, 391,686.80 and 161,330.62 is: 222,628.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,841.46 : 391,686.80 = 161,330.62 : x
  2. Step 2: Convert to fraction form
    283,841.46/391,686.80 = 161,330.62/x
  3. Step 3: Cross multiply
    283,841.46x = 391,686.80 × 161,330.62
  4. Step 4: Simplify right side
    283,841.46x = 63,191,074,289.82
  5. Step 5: Solve for x
    x = 63,191,074,289.82/283,841.46
  6. Step 6: Final answer
    x = 222,628.06

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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.