Home / 881,441.32-1,216,389.54-479,033.32

Finding the Fourth Proportional to 881,441.32, 1,216,389.54 and 479,033.32

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Solution

The fourth proportional to 881,441.32, 1,216,389.54 and 479,033.32 is: 661,066.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,441.32 : 1,216,389.54 = 479,033.32 : x
  2. Step 2: Convert to fraction form
    881,441.32/1,216,389.54 = 479,033.32/x
  3. Step 3: Cross multiply
    881,441.32x = 1,216,389.54 × 479,033.32
  4. Step 4: Simplify right side
    881,441.32x = 582,691,119,759.47
  5. Step 5: Solve for x
    x = 582,691,119,759.47/881,441.32
  6. Step 6: Final answer
    x = 661,066.26

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Double scale
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Similar ratio
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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.