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Finding the Fourth Proportional to 479,391.84, 719,362.52 and 195,029.91

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Solution

The fourth proportional to 479,391.84, 719,362.52 and 195,029.91 is: 292,656.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,391.84 : 719,362.52 = 195,029.91 : x
  2. Step 2: Convert to fraction form
    479,391.84/719,362.52 = 195,029.91/x
  3. Step 3: Cross multiply
    479,391.84x = 719,362.52 × 195,029.91
  4. Step 4: Simplify right side
    479,391.84x = 140,297,206,557.82
  5. Step 5: Solve for x
    x = 140,297,206,557.82/479,391.84
  6. Step 6: Final answer
    x = 292,656.64

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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.