Home / 881,302.26-1,216,215.09-478,920.18

Finding the Fourth Proportional to 881,302.26, 1,216,215.09 and 478,920.18

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Solution

The fourth proportional to 881,302.26, 1,216,215.09 and 478,920.18 is: 660,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,302.26 : 1,216,215.09 = 478,920.18 : x
  2. Step 2: Convert to fraction form
    881,302.26/1,216,215.09 = 478,920.18/x
  3. Step 3: Cross multiply
    881,302.26x = 1,216,215.09 × 478,920.18
  4. Step 4: Simplify right side
    881,302.26x = 582,469,949,821.52
  5. Step 5: Solve for x
    x = 582,469,949,821.52/881,302.26
  6. Step 6: Final answer
    x = 660,919.61

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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.