Home / 719,394.59-992,761.09-397,101.87

Finding the Fourth Proportional to 719,394.59, 992,761.09 and 397,101.87

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Solution

The fourth proportional to 719,394.59, 992,761.09 and 397,101.87 is: 547,998.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,394.59 : 992,761.09 = 397,101.87 : x
  2. Step 2: Convert to fraction form
    719,394.59/992,761.09 = 397,101.87/x
  3. Step 3: Cross multiply
    719,394.59x = 992,761.09 × 397,101.87
  4. Step 4: Simplify right side
    719,394.59x = 394,227,284,309.48
  5. Step 5: Solve for x
    x = 394,227,284,309.48/719,394.59
  6. Step 6: Final answer
    x = 547,998.68

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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.