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Finding the Fourth Proportional to 644,708.54, 967,070.10 and 195,425.84

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Solution

The fourth proportional to 644,708.54, 967,070.10 and 195,425.84 is: 293,140.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,708.54 : 967,070.10 = 195,425.84 : x
  2. Step 2: Convert to fraction form
    644,708.54/967,070.10 = 195,425.84/x
  3. Step 3: Cross multiply
    644,708.54x = 967,070.10 × 195,425.84
  4. Step 4: Simplify right side
    644,708.54x = 188,990,486,631.38
  5. Step 5: Solve for x
    x = 188,990,486,631.38/644,708.54
  6. Step 6: Final answer
    x = 293,140.97

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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.