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Finding the Fourth Proportional to 3,607,641.92, 4,978,600.08 and 1,976,199.68

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Solution

The fourth proportional to 3,607,641.92, 4,978,600.08 and 1,976,199.68 is: 2,727,185.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607,641.92 : 4,978,600.08 = 1,976,199.68 : x
  2. Step 2: Convert to fraction form
    3,607,641.92/4,978,600.08 = 1,976,199.68/x
  3. Step 3: Cross multiply
    3,607,641.92x = 4,978,600.08 × 1,976,199.68
  4. Step 4: Simplify right side
    3,607,641.92x = 9,838,707,884,943.98
  5. Step 5: Solve for x
    x = 9,838,707,884,943.98/3,607,641.92
  6. Step 6: Final answer
    x = 2,727,185.26

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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.