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Finding the Fourth Proportional to 6,618,375.40, 9,927,563.10 and 4,098,951.40

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Solution

The fourth proportional to 6,618,375.40, 9,927,563.10 and 4,098,951.40 is: 6,148,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618,375.40 : 9,927,563.10 = 4,098,951.40 : x
  2. Step 2: Convert to fraction form
    6,618,375.40/9,927,563.10 = 4,098,951.40/x
  3. Step 3: Cross multiply
    6,618,375.40x = 9,927,563.10 × 4,098,951.40
  4. Step 4: Simplify right side
    6,618,375.40x = 40,692,598,667,333.34
  5. Step 5: Solve for x
    x = 40,692,598,667,333.34/6,618,375.40
  6. Step 6: Final answer
    x = 6,148,427.10

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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.