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Finding the Fourth Proportional to 316,708.76, 437,066.58 and 178,876.62

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Solution

The fourth proportional to 316,708.76, 437,066.58 and 178,876.62 is: 246,854.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,708.76 : 437,066.58 = 178,876.62 : x
  2. Step 2: Convert to fraction form
    316,708.76/437,066.58 = 178,876.62/x
  3. Step 3: Cross multiply
    316,708.76x = 437,066.58 × 178,876.62
  4. Step 4: Simplify right side
    316,708.76x = 78,180,992,545.36
  5. Step 5: Solve for x
    x = 78,180,992,545.36/316,708.76
  6. Step 6: Final answer
    x = 246,854.54

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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.