Home / 635,638.20-953,454.42-215,204.28

Finding the Fourth Proportional to 635,638.20, 953,454.42 and 215,204.28

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Solution

The fourth proportional to 635,638.20, 953,454.42 and 215,204.28 is: 322,805.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,638.20 : 953,454.42 = 215,204.28 : x
  2. Step 2: Convert to fraction form
    635,638.20/953,454.42 = 215,204.28/x
  3. Step 3: Cross multiply
    635,638.20x = 953,454.42 × 215,204.28
  4. Step 4: Simplify right side
    635,638.20x = 205,187,471,968.92
  5. Step 5: Solve for x
    x = 205,187,471,968.92/635,638.20
  6. Step 6: Final answer
    x = 322,805.44

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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.