Home / 644,186.20-966,279.30-223,504.60

Finding the Fourth Proportional to 644,186.20, 966,279.30 and 223,504.60

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Solution

The fourth proportional to 644,186.20, 966,279.30 and 223,504.60 is: 335,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,186.20 : 966,279.30 = 223,504.60 : x
  2. Step 2: Convert to fraction form
    644,186.20/966,279.30 = 223,504.60/x
  3. Step 3: Cross multiply
    644,186.20x = 966,279.30 × 223,504.60
  4. Step 4: Simplify right side
    644,186.20x = 215,967,868,434.78
  5. Step 5: Solve for x
    x = 215,967,868,434.78/644,186.20
  6. Step 6: Final answer
    x = 335,256.90

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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.