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Finding the Fourth Proportional to 6,652,576.40, 9,982,801.20 and 4,384,657.40

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Solution

The fourth proportional to 6,652,576.40, 9,982,801.20 and 4,384,657.40 is: 6,579,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652,576.40 : 9,982,801.20 = 4,384,657.40 : x
  2. Step 2: Convert to fraction form
    6,652,576.40/9,982,801.20 = 4,384,657.40/x
  3. Step 3: Cross multiply
    6,652,576.40x = 9,982,801.20 × 4,384,657.40
  4. Step 4: Simplify right side
    6,652,576.40x = 43,771,163,154,308.88
  5. Step 5: Solve for x
    x = 43,771,163,154,308.88/6,652,576.40
  6. Step 6: Final answer
    x = 6,579,580.68

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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.