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Finding the Fourth Proportional to 619,155.42, 928,670.88 and 169,921.44

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Solution

The fourth proportional to 619,155.42, 928,670.88 and 169,921.44 is: 254,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,155.42 : 928,670.88 = 169,921.44 : x
  2. Step 2: Convert to fraction form
    619,155.42/928,670.88 = 169,921.44/x
  3. Step 3: Cross multiply
    619,155.42x = 928,670.88 × 169,921.44
  4. Step 4: Simplify right side
    619,155.42x = 157,801,093,215.67
  5. Step 5: Solve for x
    x = 157,801,093,215.67/619,155.42
  6. Step 6: Final answer
    x = 254,865.08

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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.