Home / 415,772.40-623,723.94-135,224.04

Finding the Fourth Proportional to 415,772.40, 623,723.94 and 135,224.04

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Solution

The fourth proportional to 415,772.40, 623,723.94 and 135,224.04 is: 202,857.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,772.40 : 623,723.94 = 135,224.04 : x
  2. Step 2: Convert to fraction form
    415,772.40/623,723.94 = 135,224.04/x
  3. Step 3: Cross multiply
    415,772.40x = 623,723.94 × 135,224.04
  4. Step 4: Simplify right side
    415,772.40x = 84,342,471,011.52
  5. Step 5: Solve for x
    x = 84,342,471,011.52/415,772.40
  6. Step 6: Final answer
    x = 202,857.31

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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.