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Finding the Fourth Proportional to 403,492.20, 605,189.70 and 166,810.20

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Solution

The fourth proportional to 403,492.20, 605,189.70 and 166,810.20 is: 250,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,492.20 : 605,189.70 = 166,810.20 : x
  2. Step 2: Convert to fraction form
    403,492.20/605,189.70 = 166,810.20/x
  3. Step 3: Cross multiply
    403,492.20x = 605,189.70 × 166,810.20
  4. Step 4: Simplify right side
    403,492.20x = 100,951,814,894.94
  5. Step 5: Solve for x
    x = 100,951,814,894.94/403,492.20
  6. Step 6: Final answer
    x = 250,195.21

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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.