Home / 828,116.01-1,242,174.20-259,497.01

Finding the Fourth Proportional to 828,116.01, 1,242,174.20 and 259,497.01

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Solution

The fourth proportional to 828,116.01, 1,242,174.20 and 259,497.01 is: 389,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,116.01 : 1,242,174.20 = 259,497.01 : x
  2. Step 2: Convert to fraction form
    828,116.01/1,242,174.20 = 259,497.01/x
  3. Step 3: Cross multiply
    828,116.01x = 1,242,174.20 × 259,497.01
  4. Step 4: Simplify right side
    828,116.01x = 322,340,490,799.14
  5. Step 5: Solve for x
    x = 322,340,490,799.14/828,116.01
  6. Step 6: Final answer
    x = 389,245.57

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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.