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Finding the Fourth Proportional to 4,496,640.65, 6,743,994.57 and 1,422,875.06

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Solution

The fourth proportional to 4,496,640.65, 6,743,994.57 and 1,422,875.06 is: 2,134,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,496,640.65 : 6,743,994.57 = 1,422,875.06 : x
  2. Step 2: Convert to fraction form
    4,496,640.65/6,743,994.57 = 1,422,875.06/x
  3. Step 3: Cross multiply
    4,496,640.65x = 6,743,994.57 × 1,422,875.06
  4. Step 4: Simplify right side
    4,496,640.65x = 9,595,861,644,708.45
  5. Step 5: Solve for x
    x = 9,595,861,644,708.45/4,496,640.65
  6. Step 6: Final answer
    x = 2,134,006.78

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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.