Home / 719,455.56-992,822.66-397,158.74

Finding the Fourth Proportional to 719,455.56, 992,822.66 and 397,158.74

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Solution

The fourth proportional to 719,455.56, 992,822.66 and 397,158.74 is: 548,064.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,455.56 : 992,822.66 = 397,158.74 : x
  2. Step 2: Convert to fraction form
    719,455.56/992,822.66 = 397,158.74/x
  3. Step 3: Cross multiply
    719,455.56x = 992,822.66 × 397,158.74
  4. Step 4: Simplify right side
    719,455.56x = 394,308,189,739.14
  5. Step 5: Solve for x
    x = 394,308,189,739.14/719,455.56
  6. Step 6: Final answer
    x = 548,064.69

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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.