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Finding the Fourth Proportional to 441,751.30, 661,642.80 and 363,019.30

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Solution

The fourth proportional to 441,751.30, 661,642.80 and 363,019.30 is: 543,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,751.30 : 661,642.80 = 363,019.30 : x
  2. Step 2: Convert to fraction form
    441,751.30/661,642.80 = 363,019.30/x
  3. Step 3: Cross multiply
    441,751.30x = 661,642.80 × 363,019.30
  4. Step 4: Simplify right side
    441,751.30x = 240,189,106,106.04
  5. Step 5: Solve for x
    x = 240,189,106,106.04/441,751.30
  6. Step 6: Final answer
    x = 543,720.20

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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.