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Finding the Fourth Proportional to 6,652,000.40, 9,978,000.60 and 2,164,276.40

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Solution

The fourth proportional to 6,652,000.40, 9,978,000.60 and 2,164,276.40 is: 3,246,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652,000.40 : 9,978,000.60 = 2,164,276.40 : x
  2. Step 2: Convert to fraction form
    6,652,000.40/9,978,000.60 = 2,164,276.40/x
  3. Step 3: Cross multiply
    6,652,000.40x = 9,978,000.60 × 2,164,276.40
  4. Step 4: Simplify right side
    6,652,000.40x = 21,595,151,217,765.84
  5. Step 5: Solve for x
    x = 21,595,151,217,765.84/6,652,000.40
  6. Step 6: Final answer
    x = 3,246,414.60

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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.