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Finding the Fourth Proportional to 609,712.40, 914,568.60 and 166,480.40

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Solution

The fourth proportional to 609,712.40, 914,568.60 and 166,480.40 is: 249,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,712.40 : 914,568.60 = 166,480.40 : x
  2. Step 2: Convert to fraction form
    609,712.40/914,568.60 = 166,480.40/x
  3. Step 3: Cross multiply
    609,712.40x = 914,568.60 × 166,480.40
  4. Step 4: Simplify right side
    609,712.40x = 152,257,746,355.44
  5. Step 5: Solve for x
    x = 152,257,746,355.44/609,712.40
  6. Step 6: Final answer
    x = 249,720.60

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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.