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Finding the Fourth Proportional to 576,998.40, 865,312.92 and 192,664.74

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Solution

The fourth proportional to 576,998.40, 865,312.92 and 192,664.74 is: 288,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,998.40 : 865,312.92 = 192,664.74 : x
  2. Step 2: Convert to fraction form
    576,998.40/865,312.92 = 192,664.74/x
  3. Step 3: Cross multiply
    576,998.40x = 865,312.92 × 192,664.74
  4. Step 4: Simplify right side
    576,998.40x = 166,715,288,750.44
  5. Step 5: Solve for x
    x = 166,715,288,750.44/576,998.40
  6. Step 6: Final answer
    x = 288,935.44

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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.