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Finding the Fourth Proportional to 6,486,976.56, 8,953,448.76 and 3,772,288.56

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Solution

The fourth proportional to 6,486,976.56, 8,953,448.76 and 3,772,288.56 is: 5,206,584.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486,976.56 : 8,953,448.76 = 3,772,288.56 : x
  2. Step 2: Convert to fraction form
    6,486,976.56/8,953,448.76 = 3,772,288.56/x
  3. Step 3: Cross multiply
    6,486,976.56x = 8,953,448.76 × 3,772,288.56
  4. Step 4: Simplify right side
    6,486,976.56x = 33,774,992,329,894.18
  5. Step 5: Solve for x
    x = 33,774,992,329,894.18/6,486,976.56
  6. Step 6: Final answer
    x = 5,206,584.61

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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.