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Finding the Fourth Proportional to 573,167.46, 858,936.45 and 422,220.72

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Solution

The fourth proportional to 573,167.46, 858,936.45 and 422,220.72 is: 632,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,167.46 : 858,936.45 = 422,220.72 : x
  2. Step 2: Convert to fraction form
    573,167.46/858,936.45 = 422,220.72/x
  3. Step 3: Cross multiply
    573,167.46x = 858,936.45 × 422,220.72
  4. Step 4: Simplify right side
    573,167.46x = 362,660,766,353.24
  5. Step 5: Solve for x
    x = 362,660,766,353.24/573,167.46
  6. Step 6: Final answer
    x = 632,730.91

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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.