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Finding the Fourth Proportional to 403,433.80, 605,150.70 and 166,946.20

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Solution

The fourth proportional to 403,433.80, 605,150.70 and 166,946.20 is: 250,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,433.80 : 605,150.70 = 166,946.20 : x
  2. Step 2: Convert to fraction form
    403,433.80/605,150.70 = 166,946.20/x
  3. Step 3: Cross multiply
    403,433.80x = 605,150.70 × 166,946.20
  4. Step 4: Simplify right side
    403,433.80x = 101,027,609,792.34
  5. Step 5: Solve for x
    x = 101,027,609,792.34/403,433.80
  6. Step 6: Final answer
    x = 250,419.30

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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.