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Finding the Fourth Proportional to 5,481,968.60, 8,222,952.90 and 1,492,880.60

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Solution

The fourth proportional to 5,481,968.60, 8,222,952.90 and 1,492,880.60 is: 2,239,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481,968.60 : 8,222,952.90 = 1,492,880.60 : x
  2. Step 2: Convert to fraction form
    5,481,968.60/8,222,952.90 = 1,492,880.60/x
  3. Step 3: Cross multiply
    5,481,968.60x = 8,222,952.90 × 1,492,880.60
  4. Step 4: Simplify right side
    5,481,968.60x = 12,275,886,859,123.74
  5. Step 5: Solve for x
    x = 12,275,886,859,123.74/5,481,968.60
  6. Step 6: Final answer
    x = 2,239,320.90

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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.