Home / 805,201.64-1,111,192.08-442,640.80

Finding the Fourth Proportional to 805,201.64, 1,111,192.08 and 442,640.80

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Solution

The fourth proportional to 805,201.64, 1,111,192.08 and 442,640.80 is: 610,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,201.64 : 1,111,192.08 = 442,640.80 : x
  2. Step 2: Convert to fraction form
    805,201.64/1,111,192.08 = 442,640.80/x
  3. Step 3: Cross multiply
    805,201.64x = 1,111,192.08 × 442,640.80
  4. Step 4: Simplify right side
    805,201.64x = 491,858,951,244.86
  5. Step 5: Solve for x
    x = 491,858,951,244.86/805,201.64
  6. Step 6: Final answer
    x = 610,851.90

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.