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Finding the Fourth Proportional to 5,584,963.70, 8,378,429.70 and 1,992,816.20

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Solution

The fourth proportional to 5,584,963.70, 8,378,429.70 and 1,992,816.20 is: 2,989,575.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,584,963.70 : 8,378,429.70 = 1,992,816.20 : x
  2. Step 2: Convert to fraction form
    5,584,963.70/8,378,429.70 = 1,992,816.20/x
  3. Step 3: Cross multiply
    5,584,963.70x = 8,378,429.70 × 1,992,816.20
  4. Step 4: Simplify right side
    5,584,963.70x = 16,696,670,436,721.14
  5. Step 5: Solve for x
    x = 16,696,670,436,721.14/5,584,963.70
  6. Step 6: Final answer
    x = 2,989,575.46

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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.