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Finding the Fourth Proportional to 891,657.60, 1,337,486.40 and 251,960.10

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Solution

The fourth proportional to 891,657.60, 1,337,486.40 and 251,960.10 is: 377,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,657.60 : 1,337,486.40 = 251,960.10 : x
  2. Step 2: Convert to fraction form
    891,657.60/1,337,486.40 = 251,960.10/x
  3. Step 3: Cross multiply
    891,657.60x = 1,337,486.40 × 251,960.10
  4. Step 4: Simplify right side
    891,657.60x = 336,993,207,092.64
  5. Step 5: Solve for x
    x = 336,993,207,092.64/891,657.60
  6. Step 6: Final answer
    x = 377,940.15

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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.