Home / 815,519.40-1,223,279.10-532,084.20

Finding the Fourth Proportional to 815,519.40, 1,223,279.10 and 532,084.20

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Solution

The fourth proportional to 815,519.40, 1,223,279.10 and 532,084.20 is: 798,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,519.40 : 1,223,279.10 = 532,084.20 : x
  2. Step 2: Convert to fraction form
    815,519.40/1,223,279.10 = 532,084.20/x
  3. Step 3: Cross multiply
    815,519.40x = 1,223,279.10 × 532,084.20
  4. Step 4: Simplify right side
    815,519.40x = 650,887,481,300.22
  5. Step 5: Solve for x
    x = 650,887,481,300.22/815,519.40
  6. Step 6: Final answer
    x = 798,126.30

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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.