Home / 691,330.90-1,036,996.35-218,161.30

Finding the Fourth Proportional to 691,330.90, 1,036,996.35 and 218,161.30

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Solution

The fourth proportional to 691,330.90, 1,036,996.35 and 218,161.30 is: 327,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,330.90 : 1,036,996.35 = 218,161.30 : x
  2. Step 2: Convert to fraction form
    691,330.90/1,036,996.35 = 218,161.30/x
  3. Step 3: Cross multiply
    691,330.90x = 1,036,996.35 × 218,161.30
  4. Step 4: Simplify right side
    691,330.90x = 226,232,471,811.26
  5. Step 5: Solve for x
    x = 226,232,471,811.26/691,330.90
  6. Step 6: Final answer
    x = 327,241.95

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Double scale
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Similar ratio
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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.