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Finding the Fourth Proportional to 303,418.80, 454,253.40 and 185,320.80

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Solution

The fourth proportional to 303,418.80, 454,253.40 and 185,320.80 is: 277,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,418.80 : 454,253.40 = 185,320.80 : x
  2. Step 2: Convert to fraction form
    303,418.80/454,253.40 = 185,320.80/x
  3. Step 3: Cross multiply
    303,418.80x = 454,253.40 × 185,320.80
  4. Step 4: Simplify right side
    303,418.80x = 84,182,603,490.72
  5. Step 5: Solve for x
    x = 84,182,603,490.72/303,418.80
  6. Step 6: Final answer
    x = 277,446.89

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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.