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Finding the Fourth Proportional to 606,871.20, 909,286.20 and 480,025.20

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Solution

The fourth proportional to 606,871.20, 909,286.20 and 480,025.20 is: 719,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,871.20 : 909,286.20 = 480,025.20 : x
  2. Step 2: Convert to fraction form
    606,871.20/909,286.20 = 480,025.20/x
  3. Step 3: Cross multiply
    606,871.20x = 909,286.20 × 480,025.20
  4. Step 4: Simplify right side
    606,871.20x = 436,480,290,012.24
  5. Step 5: Solve for x
    x = 436,480,290,012.24/606,871.20
  6. Step 6: Final answer
    x = 719,230.52

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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.