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Finding the Fourth Proportional to 719,463.24, 992,854.40 and 397,173.22

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Solution

The fourth proportional to 719,463.24, 992,854.40 and 397,173.22 is: 548,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,463.24 : 992,854.40 = 397,173.22 : x
  2. Step 2: Convert to fraction form
    719,463.24/992,854.40 = 397,173.22/x
  3. Step 3: Cross multiply
    719,463.24x = 992,854.40 × 397,173.22
  4. Step 4: Simplify right side
    719,463.24x = 394,335,174,571.17
  5. Step 5: Solve for x
    x = 394,335,174,571.17/719,463.24
  6. Step 6: Final answer
    x = 548,096.35

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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.