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Finding the Fourth Proportional to 3,964,252.80, 5,553,686.40 and 3,964,252.80

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Solution

The fourth proportional to 3,964,252.80, 5,553,686.40 and 3,964,252.80 is: 5,553,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964,252.80 : 5,553,686.40 = 3,964,252.80 : x
  2. Step 2: Convert to fraction form
    3,964,252.80/5,553,686.40 = 3,964,252.80/x
  3. Step 3: Cross multiply
    3,964,252.80x = 5,553,686.40 × 3,964,252.80
  4. Step 4: Simplify right side
    3,964,252.80x = 22,016,216,861,521.92
  5. Step 5: Solve for x
    x = 22,016,216,861,521.92/3,964,252.80
  6. Step 6: Final answer
    x = 5,553,686.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.