Home / 719,441.46-992,829.38-397,151.78

Finding the Fourth Proportional to 719,441.46, 992,829.38 and 397,151.78

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Solution

The fourth proportional to 719,441.46, 992,829.38 and 397,151.78 is: 548,069.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,441.46 : 992,829.38 = 397,151.78 : x
  2. Step 2: Convert to fraction form
    719,441.46/992,829.38 = 397,151.78/x
  3. Step 3: Cross multiply
    719,441.46x = 992,829.38 × 397,151.78
  4. Step 4: Simplify right side
    719,441.46x = 394,303,955,503.30
  5. Step 5: Solve for x
    x = 394,303,955,503.30/719,441.46
  6. Step 6: Final answer
    x = 548,069.55

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Double scale
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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.