Home / 719,439.96-992,827.31-397,150.28

Finding the Fourth Proportional to 719,439.96, 992,827.31 and 397,150.28

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Solution

The fourth proportional to 719,439.96, 992,827.31 and 397,150.28 is: 548,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,439.96 : 992,827.31 = 397,150.28 : x
  2. Step 2: Convert to fraction form
    719,439.96/992,827.31 = 397,150.28/x
  3. Step 3: Cross multiply
    719,439.96x = 992,827.31 × 397,150.28
  4. Step 4: Simplify right side
    719,439.96x = 394,301,637,208.26
  5. Step 5: Solve for x
    x = 394,301,637,208.26/719,439.96
  6. Step 6: Final answer
    x = 548,067.47

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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.