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Finding the Fourth Proportional to 644,887.04, 967,332.78 and 195,611.76

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Solution

The fourth proportional to 644,887.04, 967,332.78 and 195,611.76 is: 293,418.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,887.04 : 967,332.78 = 195,611.76 : x
  2. Step 2: Convert to fraction form
    644,887.04/967,332.78 = 195,611.76/x
  3. Step 3: Cross multiply
    644,887.04x = 967,332.78 × 195,611.76
  4. Step 4: Simplify right side
    644,887.04x = 189,221,667,601.49
  5. Step 5: Solve for x
    x = 189,221,667,601.49/644,887.04
  6. Step 6: Final answer
    x = 293,418.32

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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.