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Finding the Fourth Proportional to 609,713.40, 914,570.10 and 166,481.40

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Solution

The fourth proportional to 609,713.40, 914,570.10 and 166,481.40 is: 249,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,713.40 : 914,570.10 = 166,481.40 : x
  2. Step 2: Convert to fraction form
    609,713.40/914,570.10 = 166,481.40/x
  3. Step 3: Cross multiply
    609,713.40x = 914,570.10 × 166,481.40
  4. Step 4: Simplify right side
    609,713.40x = 152,258,910,646.14
  5. Step 5: Solve for x
    x = 152,258,910,646.14/609,713.40
  6. Step 6: Final answer
    x = 249,722.10

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Double scale
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Similar ratio
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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.