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Finding the Fourth Proportional to 317,424.28, 438,049.02 and 174,180.28

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Solution

The fourth proportional to 317,424.28, 438,049.02 and 174,180.28 is: 240,370.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,424.28 : 438,049.02 = 174,180.28 : x
  2. Step 2: Convert to fraction form
    317,424.28/438,049.02 = 174,180.28/x
  3. Step 3: Cross multiply
    317,424.28x = 438,049.02 × 174,180.28
  4. Step 4: Simplify right side
    317,424.28x = 76,299,500,957.33
  5. Step 5: Solve for x
    x = 76,299,500,957.33/317,424.28
  6. Step 6: Final answer
    x = 240,370.71

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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.