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Finding the Fourth Proportional to 370,964.80, 556,447.20 and 252,866.80

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Solution

The fourth proportional to 370,964.80, 556,447.20 and 252,866.80 is: 379,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,964.80 : 556,447.20 = 252,866.80 : x
  2. Step 2: Convert to fraction form
    370,964.80/556,447.20 = 252,866.80/x
  3. Step 3: Cross multiply
    370,964.80x = 556,447.20 × 252,866.80
  4. Step 4: Simplify right side
    370,964.80x = 140,707,022,832.96
  5. Step 5: Solve for x
    x = 140,707,022,832.96/370,964.80
  6. Step 6: Final answer
    x = 379,300.20

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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.