Home / 691,257.82-1,036,788.30-217,881.66

Finding the Fourth Proportional to 691,257.82, 1,036,788.30 and 217,881.66

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Solution

The fourth proportional to 691,257.82, 1,036,788.30 and 217,881.66 is: 326,791.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,257.82 : 1,036,788.30 = 217,881.66 : x
  2. Step 2: Convert to fraction form
    691,257.82/1,036,788.30 = 217,881.66/x
  3. Step 3: Cross multiply
    691,257.82x = 1,036,788.30 × 217,881.66
  4. Step 4: Simplify right side
    691,257.82x = 225,897,155,872.58
  5. Step 5: Solve for x
    x = 225,897,155,872.58/691,257.82
  6. Step 6: Final answer
    x = 326,791.47

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Double scale
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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.