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Finding the Fourth Proportional to 644,507.53, 966,810.51 and 195,265.61

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Solution

The fourth proportional to 644,507.53, 966,810.51 and 195,265.61 is: 292,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,507.53 : 966,810.51 = 195,265.61 : x
  2. Step 2: Convert to fraction form
    644,507.53/966,810.51 = 195,265.61/x
  3. Step 3: Cross multiply
    644,507.53x = 966,810.51 × 195,265.61
  4. Step 4: Simplify right side
    644,507.53x = 188,784,844,951.02
  5. Step 5: Solve for x
    x = 188,784,844,951.02/644,507.53
  6. Step 6: Final answer
    x = 292,913.33

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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.