Home / 823,266.20-1,234,899.30-291,387.80

Finding the Fourth Proportional to 823,266.20, 1,234,899.30 and 291,387.80

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Solution

The fourth proportional to 823,266.20, 1,234,899.30 and 291,387.80 is: 437,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,266.20 : 1,234,899.30 = 291,387.80 : x
  2. Step 2: Convert to fraction form
    823,266.20/1,234,899.30 = 291,387.80/x
  3. Step 3: Cross multiply
    823,266.20x = 1,234,899.30 × 291,387.80
  4. Step 4: Simplify right side
    823,266.20x = 359,834,590,248.54
  5. Step 5: Solve for x
    x = 359,834,590,248.54/823,266.20
  6. Step 6: Final answer
    x = 437,081.70

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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.