Home / 495,236.85-681,896.61-386,779.29

Finding the Fourth Proportional to 495,236.85, 681,896.61 and 386,779.29

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Solution

The fourth proportional to 495,236.85, 681,896.61 and 386,779.29 is: 532,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,236.85 : 681,896.61 = 386,779.29 : x
  2. Step 2: Convert to fraction form
    495,236.85/681,896.61 = 386,779.29/x
  3. Step 3: Cross multiply
    495,236.85x = 681,896.61 × 386,779.29
  4. Step 4: Simplify right side
    495,236.85x = 263,743,486,669.21
  5. Step 5: Solve for x
    x = 263,743,486,669.21/495,236.85
  6. Step 6: Final answer
    x = 532,560.30

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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.