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Finding the Fourth Proportional to 539,589.92, 809,384.40 and 160,509.12

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Solution

The fourth proportional to 539,589.92, 809,384.40 and 160,509.12 is: 240,763.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,589.92 : 809,384.40 = 160,509.12 : x
  2. Step 2: Convert to fraction form
    539,589.92/809,384.40 = 160,509.12/x
  3. Step 3: Cross multiply
    539,589.92x = 809,384.40 × 160,509.12
  4. Step 4: Simplify right side
    539,589.92x = 129,913,577,785.73
  5. Step 5: Solve for x
    x = 129,913,577,785.73/539,589.92
  6. Step 6: Final answer
    x = 240,763.54

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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.