Home / 627,743.60-941,615.40-154,422.80

Finding the Fourth Proportional to 627,743.60, 941,615.40 and 154,422.80

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Solution

The fourth proportional to 627,743.60, 941,615.40 and 154,422.80 is: 231,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,743.60 : 941,615.40 = 154,422.80 : x
  2. Step 2: Convert to fraction form
    627,743.60/941,615.40 = 154,422.80/x
  3. Step 3: Cross multiply
    627,743.60x = 941,615.40 × 154,422.80
  4. Step 4: Simplify right side
    627,743.60x = 145,406,886,591.12
  5. Step 5: Solve for x
    x = 145,406,886,591.12/627,743.60
  6. Step 6: Final answer
    x = 231,634.20

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.