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Finding the Fourth Proportional to 5,754,384.98, 7,940,485.90 and 3,175,899.68

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Solution

The fourth proportional to 5,754,384.98, 7,940,485.90 and 3,175,899.68 is: 4,382,429.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,754,384.98 : 7,940,485.90 = 3,175,899.68 : x
  2. Step 2: Convert to fraction form
    5,754,384.98/7,940,485.90 = 3,175,899.68/x
  3. Step 3: Cross multiply
    5,754,384.98x = 7,940,485.90 × 3,175,899.68
  4. Step 4: Simplify right side
    5,754,384.98x = 25,218,186,593,121.96
  5. Step 5: Solve for x
    x = 25,218,186,593,121.96/5,754,384.98
  6. Step 6: Final answer
    x = 4,382,429.52

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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.