Home / 719,427.11-992,816.28-397,130.27

Finding the Fourth Proportional to 719,427.11, 992,816.28 and 397,130.27

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Solution

The fourth proportional to 719,427.11, 992,816.28 and 397,130.27 is: 548,043.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,427.11 : 992,816.28 = 397,130.27 : x
  2. Step 2: Convert to fraction form
    719,427.11/992,816.28 = 397,130.27/x
  3. Step 3: Cross multiply
    719,427.11x = 992,816.28 × 397,130.27
  4. Step 4: Simplify right side
    719,427.11x = 394,277,392,372.71
  5. Step 5: Solve for x
    x = 394,277,392,372.71/719,427.11
  6. Step 6: Final answer
    x = 548,043.56

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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.