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Finding the Fourth Proportional to 286,246.62, 395,024.22 and 157,191.78

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Solution

The fourth proportional to 286,246.62, 395,024.22 and 157,191.78 is: 216,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,246.62 : 395,024.22 = 157,191.78 : x
  2. Step 2: Convert to fraction form
    286,246.62/395,024.22 = 157,191.78/x
  3. Step 3: Cross multiply
    286,246.62x = 395,024.22 × 157,191.78
  4. Step 4: Simplify right side
    286,246.62x = 62,094,560,284.91
  5. Step 5: Solve for x
    x = 62,094,560,284.91/286,246.62
  6. Step 6: Final answer
    x = 216,926.79

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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.