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Finding the Fourth Proportional to 316,680.76, 437,019.60 and 173,449.81

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Solution

The fourth proportional to 316,680.76, 437,019.60 and 173,449.81 is: 239,360.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,680.76 : 437,019.60 = 173,449.81 : x
  2. Step 2: Convert to fraction form
    316,680.76/437,019.60 = 173,449.81/x
  3. Step 3: Cross multiply
    316,680.76x = 437,019.60 × 173,449.81
  4. Step 4: Simplify right side
    316,680.76x = 75,800,966,586.28
  5. Step 5: Solve for x
    x = 75,800,966,586.28/316,680.76
  6. Step 6: Final answer
    x = 239,360.82

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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.