Home / 719,405.12-992,773.59-397,115.44

Finding the Fourth Proportional to 719,405.12, 992,773.59 and 397,115.44

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Solution

The fourth proportional to 719,405.12, 992,773.59 and 397,115.44 is: 548,016.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,405.12 : 992,773.59 = 397,115.44 : x
  2. Step 2: Convert to fraction form
    719,405.12/992,773.59 = 397,115.44/x
  3. Step 3: Cross multiply
    719,405.12x = 992,773.59 × 397,115.44
  4. Step 4: Simplify right side
    719,405.12x = 394,245,716,049.36
  5. Step 5: Solve for x
    x = 394,245,716,049.36/719,405.12
  6. Step 6: Final answer
    x = 548,016.28

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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.