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Finding the Fourth Proportional to 609,246.78, 913,870.20 and 166,014.78

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Solution

The fourth proportional to 609,246.78, 913,870.20 and 166,014.78 is: 249,022.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,246.78 : 913,870.20 = 166,014.78 : x
  2. Step 2: Convert to fraction form
    609,246.78/913,870.20 = 166,014.78/x
  3. Step 3: Cross multiply
    609,246.78x = 913,870.20 × 166,014.78
  4. Step 4: Simplify right side
    609,246.78x = 151,715,960,201.56
  5. Step 5: Solve for x
    x = 151,715,960,201.56/609,246.78
  6. Step 6: Final answer
    x = 249,022.18

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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.