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Finding the Fourth Proportional to 608,393.71, 839,329.62 and 350,208.88

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Solution

The fourth proportional to 608,393.71, 839,329.62 and 350,208.88 is: 483,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,393.71 : 839,329.62 = 350,208.88 : x
  2. Step 2: Convert to fraction form
    608,393.71/839,329.62 = 350,208.88/x
  3. Step 3: Cross multiply
    608,393.71x = 839,329.62 × 350,208.88
  4. Step 4: Simplify right side
    608,393.71x = 293,940,686,171.03
  5. Step 5: Solve for x
    x = 293,940,686,171.03/608,393.71
  6. Step 6: Final answer
    x = 483,142.22

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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.