Home / 853,066.20-1,279,253.70-291,811.80

Finding the Fourth Proportional to 853,066.20, 1,279,253.70 and 291,811.80

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Solution

The fourth proportional to 853,066.20, 1,279,253.70 and 291,811.80 is: 437,599.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,066.20 : 1,279,253.70 = 291,811.80 : x
  2. Step 2: Convert to fraction form
    853,066.20/1,279,253.70 = 291,811.80/x
  3. Step 3: Cross multiply
    853,066.20x = 1,279,253.70 × 291,811.80
  4. Step 4: Simplify right side
    853,066.20x = 373,301,324,853.66
  5. Step 5: Solve for x
    x = 373,301,324,853.66/853,066.20
  6. Step 6: Final answer
    x = 437,599.48

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Double scale
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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.