Home / 935,678.31-1,291,243.78-516,587.60

Finding the Fourth Proportional to 935,678.31, 1,291,243.78 and 516,587.60

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Solution

The fourth proportional to 935,678.31, 1,291,243.78 and 516,587.60 is: 712,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,678.31 : 1,291,243.78 = 516,587.60 : x
  2. Step 2: Convert to fraction form
    935,678.31/1,291,243.78 = 516,587.60/x
  3. Step 3: Cross multiply
    935,678.31x = 1,291,243.78 × 516,587.60
  4. Step 4: Simplify right side
    935,678.31x = 667,040,529,198.97
  5. Step 5: Solve for x
    x = 667,040,529,198.97/935,678.31
  6. Step 6: Final answer
    x = 712,895.15

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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.