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Finding the Fourth Proportional to 2,057,887.92, 2,839,372.32 and 1,186,988.88

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Solution

The fourth proportional to 2,057,887.92, 2,839,372.32 and 1,186,988.88 is: 1,637,748.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057,887.92 : 2,839,372.32 = 1,186,988.88 : x
  2. Step 2: Convert to fraction form
    2,057,887.92/2,839,372.32 = 1,186,988.88/x
  3. Step 3: Cross multiply
    2,057,887.92x = 2,839,372.32 × 1,186,988.88
  4. Step 4: Simplify right side
    2,057,887.92x = 3,370,303,370,019.80
  5. Step 5: Solve for x
    x = 3,370,303,370,019.80/2,057,887.92
  6. Step 6: Final answer
    x = 1,637,748.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.