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Finding the Fourth Proportional to 627,612.60, 941,418.90 and 201,147.60

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Solution

The fourth proportional to 627,612.60, 941,418.90 and 201,147.60 is: 301,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,612.60 : 941,418.90 = 201,147.60 : x
  2. Step 2: Convert to fraction form
    627,612.60/941,418.90 = 201,147.60/x
  3. Step 3: Cross multiply
    627,612.60x = 941,418.90 × 201,147.60
  4. Step 4: Simplify right side
    627,612.60x = 189,364,152,329.64
  5. Step 5: Solve for x
    x = 189,364,152,329.64/627,612.60
  6. Step 6: Final answer
    x = 301,721.40

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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.