Home / 719,428.11-992,817.66-397,131.27

Finding the Fourth Proportional to 719,428.11, 992,817.66 and 397,131.27

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Solution

The fourth proportional to 719,428.11, 992,817.66 and 397,131.27 is: 548,044.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,428.11 : 992,817.66 = 397,131.27 : x
  2. Step 2: Convert to fraction form
    719,428.11/992,817.66 = 397,131.27/x
  3. Step 3: Cross multiply
    719,428.11x = 992,817.66 × 397,131.27
  4. Step 4: Simplify right side
    719,428.11x = 394,278,938,194.23
  5. Step 5: Solve for x
    x = 394,278,938,194.23/719,428.11
  6. Step 6: Final answer
    x = 548,044.94

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1.5x scale

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.