Home / 719,465.43-992,865.46-397,178.17

Finding the Fourth Proportional to 719,465.43, 992,865.46 and 397,178.17

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Solution

The fourth proportional to 719,465.43, 992,865.46 and 397,178.17 is: 548,107.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,465.43 : 992,865.46 = 397,178.17 : x
  2. Step 2: Convert to fraction form
    719,465.43/992,865.46 = 397,178.17/x
  3. Step 3: Cross multiply
    719,465.43x = 992,865.46 × 397,178.17
  4. Step 4: Simplify right side
    719,465.43x = 394,344,489,934.12
  5. Step 5: Solve for x
    x = 394,344,489,934.12/719,465.43
  6. Step 6: Final answer
    x = 548,107.63

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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.