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Finding the Fourth Proportional to 4,329,855.76, 5,978,141.16 and 2,698,915.60

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Solution

The fourth proportional to 4,329,855.76, 5,978,141.16 and 2,698,915.60 is: 3,726,336.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,329,855.76 : 5,978,141.16 = 2,698,915.60 : x
  2. Step 2: Convert to fraction form
    4,329,855.76/5,978,141.16 = 2,698,915.60/x
  3. Step 3: Cross multiply
    4,329,855.76x = 5,978,141.16 × 2,698,915.60
  4. Step 4: Simplify right side
    4,329,855.76x = 16,134,498,435,726.10
  5. Step 5: Solve for x
    x = 16,134,498,435,726.10/4,329,855.76
  6. Step 6: Final answer
    x = 3,726,336.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.