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Finding the Fourth Proportional to 2,867,564.03, 3,957,239.41 and 1,578,395.16

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Solution

The fourth proportional to 2,867,564.03, 3,957,239.41 and 1,578,395.16 is: 2,178,185.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867,564.03 : 3,957,239.41 = 1,578,395.16 : x
  2. Step 2: Convert to fraction form
    2,867,564.03/3,957,239.41 = 1,578,395.16/x
  3. Step 3: Cross multiply
    2,867,564.03x = 3,957,239.41 × 1,578,395.16
  4. Step 4: Simplify right side
    2,867,564.03x = 6,246,087,527,759.27
  5. Step 5: Solve for x
    x = 6,246,087,527,759.27/2,867,564.03
  6. Step 6: Final answer
    x = 2,178,185.90

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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.