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Finding the Fourth Proportional to 361,873.80, 542,810.70 and 325,132.20

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Solution

The fourth proportional to 361,873.80, 542,810.70 and 325,132.20 is: 487,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,873.80 : 542,810.70 = 325,132.20 : x
  2. Step 2: Convert to fraction form
    361,873.80/542,810.70 = 325,132.20/x
  3. Step 3: Cross multiply
    361,873.80x = 542,810.70 × 325,132.20
  4. Step 4: Simplify right side
    361,873.80x = 176,485,237,074.54
  5. Step 5: Solve for x
    x = 176,485,237,074.54/361,873.80
  6. Step 6: Final answer
    x = 487,698.30

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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.