Home / 656,286.08-984,120.96-390,081.92

Finding the Fourth Proportional to 656,286.08, 984,120.96 and 390,081.92

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Solution

The fourth proportional to 656,286.08, 984,120.96 and 390,081.92 is: 584,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,286.08 : 984,120.96 = 390,081.92 : x
  2. Step 2: Convert to fraction form
    656,286.08/984,120.96 = 390,081.92/x
  3. Step 3: Cross multiply
    656,286.08x = 984,120.96 × 390,081.92
  4. Step 4: Simplify right side
    656,286.08x = 383,887,793,589.04
  5. Step 5: Solve for x
    x = 383,887,793,589.04/656,286.08
  6. Step 6: Final answer
    x = 584,939.72

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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.