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Finding the Fourth Proportional to 609,076.40, 913,672.20 and 165,844.40

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Solution

The fourth proportional to 609,076.40, 913,672.20 and 165,844.40 is: 248,782.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,076.40 : 913,672.20 = 165,844.40 : x
  2. Step 2: Convert to fraction form
    609,076.40/913,672.20 = 165,844.40/x
  3. Step 3: Cross multiply
    609,076.40x = 913,672.20 × 165,844.40
  4. Step 4: Simplify right side
    609,076.40x = 151,527,417,805.68
  5. Step 5: Solve for x
    x = 151,527,417,805.68/609,076.40
  6. Step 6: Final answer
    x = 248,782.28

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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.