Home / 862,105.79-1,189,705.99-480,132.57

Finding the Fourth Proportional to 862,105.79, 1,189,705.99 and 480,132.57

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Solution

The fourth proportional to 862,105.79, 1,189,705.99 and 480,132.57 is: 662,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,105.79 : 1,189,705.99 = 480,132.57 : x
  2. Step 2: Convert to fraction form
    862,105.79/1,189,705.99 = 480,132.57/x
  3. Step 3: Cross multiply
    862,105.79x = 1,189,705.99 × 480,132.57
  4. Step 4: Simplify right side
    862,105.79x = 571,216,594,523.09
  5. Step 5: Solve for x
    x = 571,216,594,523.09/862,105.79
  6. Step 6: Final answer
    x = 662,582.95

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Double scale
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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.