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Finding the Fourth Proportional to 884,978.20, 1,327,467.30 and 220,130.20

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Solution

The fourth proportional to 884,978.20, 1,327,467.30 and 220,130.20 is: 330,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,978.20 : 1,327,467.30 = 220,130.20 : x
  2. Step 2: Convert to fraction form
    884,978.20/1,327,467.30 = 220,130.20/x
  3. Step 3: Cross multiply
    884,978.20x = 1,327,467.30 × 220,130.20
  4. Step 4: Simplify right side
    884,978.20x = 292,215,642,242.46
  5. Step 5: Solve for x
    x = 292,215,642,242.46/884,978.20
  6. Step 6: Final answer
    x = 330,195.30

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1.5x scale

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.