Home / 895,789.38-1,236,189.36-493,381.38

Finding the Fourth Proportional to 895,789.38, 1,236,189.36 and 493,381.38

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Solution

The fourth proportional to 895,789.38, 1,236,189.36 and 493,381.38 is: 680,866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,789.38 : 1,236,189.36 = 493,381.38 : x
  2. Step 2: Convert to fraction form
    895,789.38/1,236,189.36 = 493,381.38/x
  3. Step 3: Cross multiply
    895,789.38x = 1,236,189.36 × 493,381.38
  4. Step 4: Simplify right side
    895,789.38x = 609,912,812,378.12
  5. Step 5: Solve for x
    x = 609,912,812,378.12/895,789.38
  6. Step 6: Final answer
    x = 680,866.31

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.