Home / 861,345.66-1,188,632.16-479,364.24

Finding the Fourth Proportional to 861,345.66, 1,188,632.16 and 479,364.24

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Solution

The fourth proportional to 861,345.66, 1,188,632.16 and 479,364.24 is: 661,508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,345.66 : 1,188,632.16 = 479,364.24 : x
  2. Step 2: Convert to fraction form
    861,345.66/1,188,632.16 = 479,364.24/x
  3. Step 3: Cross multiply
    861,345.66x = 1,188,632.16 × 479,364.24
  4. Step 4: Simplify right side
    861,345.66x = 569,787,752,017.96
  5. Step 5: Solve for x
    x = 569,787,752,017.96/861,345.66
  6. Step 6: Final answer
    x = 661,508.82

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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.