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Finding the Fourth Proportional to 403,604.20, 605,357.70 and 166,922.20

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Solution

The fourth proportional to 403,604.20, 605,357.70 and 166,922.20 is: 250,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,604.20 : 605,357.70 = 166,922.20 : x
  2. Step 2: Convert to fraction form
    403,604.20/605,357.70 = 166,922.20/x
  3. Step 3: Cross multiply
    403,604.20x = 605,357.70 × 166,922.20
  4. Step 4: Simplify right side
    403,604.20x = 101,047,639,070.94
  5. Step 5: Solve for x
    x = 101,047,639,070.94/403,604.20
  6. Step 6: Final answer
    x = 250,363.20

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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.