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Finding the Fourth Proportional to 552,114.60, 828,171.90 and 197,140.20

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Solution

The fourth proportional to 552,114.60, 828,171.90 and 197,140.20 is: 295,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,114.60 : 828,171.90 = 197,140.20 : x
  2. Step 2: Convert to fraction form
    552,114.60/828,171.90 = 197,140.20/x
  3. Step 3: Cross multiply
    552,114.60x = 828,171.90 × 197,140.20
  4. Step 4: Simplify right side
    552,114.60x = 163,265,974,000.38
  5. Step 5: Solve for x
    x = 163,265,974,000.38/552,114.60
  6. Step 6: Final answer
    x = 295,710.30

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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.