Home / 910,839.60-1,366,259.40-378,086.40

Finding the Fourth Proportional to 910,839.60, 1,366,259.40 and 378,086.40

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Solution

The fourth proportional to 910,839.60, 1,366,259.40 and 378,086.40 is: 567,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,839.60 : 1,366,259.40 = 378,086.40 : x
  2. Step 2: Convert to fraction form
    910,839.60/1,366,259.40 = 378,086.40/x
  3. Step 3: Cross multiply
    910,839.60x = 1,366,259.40 × 378,086.40
  4. Step 4: Simplify right side
    910,839.60x = 516,564,098,012.16
  5. Step 5: Solve for x
    x = 516,564,098,012.16/910,839.60
  6. Step 6: Final answer
    x = 567,129.60

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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.