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Finding the Fourth Proportional to 362,721.20, 544,081.80 and 323,322.80

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Solution

The fourth proportional to 362,721.20, 544,081.80 and 323,322.80 is: 484,984.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,721.20 : 544,081.80 = 323,322.80 : x
  2. Step 2: Convert to fraction form
    362,721.20/544,081.80 = 323,322.80/x
  3. Step 3: Cross multiply
    362,721.20x = 544,081.80 × 323,322.80
  4. Step 4: Simplify right side
    362,721.20x = 175,914,051,005.04
  5. Step 5: Solve for x
    x = 175,914,051,005.04/362,721.20
  6. Step 6: Final answer
    x = 484,984.20

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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.