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Finding the Fourth Proportional to 363,009.20, 544,513.80 and 202,920.80

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Solution

The fourth proportional to 363,009.20, 544,513.80 and 202,920.80 is: 304,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,009.20 : 544,513.80 = 202,920.80 : x
  2. Step 2: Convert to fraction form
    363,009.20/544,513.80 = 202,920.80/x
  3. Step 3: Cross multiply
    363,009.20x = 544,513.80 × 202,920.80
  4. Step 4: Simplify right side
    363,009.20x = 110,493,175,907.04
  5. Step 5: Solve for x
    x = 110,493,175,907.04/363,009.20
  6. Step 6: Final answer
    x = 304,381.20

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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.