Home / 457,571.49-686,545.22-201,272.10

Finding the Fourth Proportional to 457,571.49, 686,545.22 and 201,272.10

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Solution

The fourth proportional to 457,571.49, 686,545.22 and 201,272.10 is: 301,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,571.49 : 686,545.22 = 201,272.10 : x
  2. Step 2: Convert to fraction form
    457,571.49/686,545.22 = 201,272.10/x
  3. Step 3: Cross multiply
    457,571.49x = 686,545.22 × 201,272.10
  4. Step 4: Simplify right side
    457,571.49x = 138,182,398,174.36
  5. Step 5: Solve for x
    x = 138,182,398,174.36/457,571.49
  6. Step 6: Final answer
    x = 301,990.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.