Home / 853,650.96-1,279,459.08-397,630.32

Finding the Fourth Proportional to 853,650.96, 1,279,459.08 and 397,630.32

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Solution

The fourth proportional to 853,650.96, 1,279,459.08 and 397,630.32 is: 595,971.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,650.96 : 1,279,459.08 = 397,630.32 : x
  2. Step 2: Convert to fraction form
    853,650.96/1,279,459.08 = 397,630.32/x
  3. Step 3: Cross multiply
    853,650.96x = 1,279,459.08 × 397,630.32
  4. Step 4: Simplify right side
    853,650.96x = 508,751,723,407.31
  5. Step 5: Solve for x
    x = 508,751,723,407.31/853,650.96
  6. Step 6: Final answer
    x = 595,971.59

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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.