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Finding the Fourth Proportional to 316,718.96, 437,078.46 and 173,479.04

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Solution

The fourth proportional to 316,718.96, 437,078.46 and 173,479.04 is: 239,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,718.96 : 437,078.46 = 173,479.04 : x
  2. Step 2: Convert to fraction form
    316,718.96/437,078.46 = 173,479.04/x
  3. Step 3: Cross multiply
    316,718.96x = 437,078.46 × 173,479.04
  4. Step 4: Simplify right side
    316,718.96x = 75,823,951,645.48
  5. Step 5: Solve for x
    x = 75,823,951,645.48/316,718.96
  6. Step 6: Final answer
    x = 239,404.52

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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.