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Finding the Fourth Proportional to 627,665.60, 941,498.40 and 201,200.60

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Solution

The fourth proportional to 627,665.60, 941,498.40 and 201,200.60 is: 301,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,665.60 : 941,498.40 = 201,200.60 : x
  2. Step 2: Convert to fraction form
    627,665.60/941,498.40 = 201,200.60/x
  3. Step 3: Cross multiply
    627,665.60x = 941,498.40 × 201,200.60
  4. Step 4: Simplify right side
    627,665.60x = 189,430,042,979.04
  5. Step 5: Solve for x
    x = 189,430,042,979.04/627,665.60
  6. Step 6: Final answer
    x = 301,800.90

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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.