Home / 741,531.60-1,023,311.56-401,998.80

Finding the Fourth Proportional to 741,531.60, 1,023,311.56 and 401,998.80

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Solution

The fourth proportional to 741,531.60, 1,023,311.56 and 401,998.80 is: 554,757.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,531.60 : 1,023,311.56 = 401,998.80 : x
  2. Step 2: Convert to fraction form
    741,531.60/1,023,311.56 = 401,998.80/x
  3. Step 3: Cross multiply
    741,531.60x = 1,023,311.56 × 401,998.80
  4. Step 4: Simplify right side
    741,531.60x = 411,370,019,146.13
  5. Step 5: Solve for x
    x = 411,370,019,146.13/741,531.60
  6. Step 6: Final answer
    x = 554,757.23

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Half scale
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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.