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Finding the Fourth Proportional to 316,472.14, 436,731.69 and 173,233

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Solution

The fourth proportional to 316,472.14, 436,731.69 and 173,233 is: 239,061.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,472.14 : 436,731.69 = 173,233 : x
  2. Step 2: Convert to fraction form
    316,472.14/436,731.69 = 173,233/x
  3. Step 3: Cross multiply
    316,472.14x = 436,731.69 × 173,233
  4. Step 4: Simplify right side
    316,472.14x = 75,656,340,853.77
  5. Step 5: Solve for x
    x = 75,656,340,853.77/316,472.14
  6. Step 6: Final answer
    x = 239,061.61

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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.