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Finding the Fourth Proportional to 317,478.92, 476,229.36 and 159,621.32

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Solution

The fourth proportional to 317,478.92, 476,229.36 and 159,621.32 is: 239,437.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,478.92 : 476,229.36 = 159,621.32 : x
  2. Step 2: Convert to fraction form
    317,478.92/476,229.36 = 159,621.32/x
  3. Step 3: Cross multiply
    317,478.92x = 476,229.36 × 159,621.32
  4. Step 4: Simplify right side
    317,478.92x = 76,016,359,065.96
  5. Step 5: Solve for x
    x = 76,016,359,065.96/317,478.92
  6. Step 6: Final answer
    x = 239,437.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.