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Finding the Fourth Proportional to 576,912.81, 865,369.80 and 150,448.32

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Solution

The fourth proportional to 576,912.81, 865,369.80 and 150,448.32 is: 225,672.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,912.81 : 865,369.80 = 150,448.32 : x
  2. Step 2: Convert to fraction form
    576,912.81/865,369.80 = 150,448.32/x
  3. Step 3: Cross multiply
    576,912.81x = 865,369.80 × 150,448.32
  4. Step 4: Simplify right side
    576,912.81x = 130,193,432,588.74
  5. Step 5: Solve for x
    x = 130,193,432,588.74/576,912.81
  6. Step 6: Final answer
    x = 225,672.63

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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.