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Finding the Fourth Proportional to 303,778.80, 455,121.45 and 241,011.90

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Solution

The fourth proportional to 303,778.80, 455,121.45 and 241,011.90 is: 361,084.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,778.80 : 455,121.45 = 241,011.90 : x
  2. Step 2: Convert to fraction form
    303,778.80/455,121.45 = 241,011.90/x
  3. Step 3: Cross multiply
    303,778.80x = 455,121.45 × 241,011.90
  4. Step 4: Simplify right side
    303,778.80x = 109,689,685,395.26
  5. Step 5: Solve for x
    x = 109,689,685,395.26/303,778.80
  6. Step 6: Final answer
    x = 361,084.07

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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.