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Finding the Fourth Proportional to 384,243.39, 530,597.16 and 239,298.03

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Solution

The fourth proportional to 384,243.39, 530,597.16 and 239,298.03 is: 330,443.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,243.39 : 530,597.16 = 239,298.03 : x
  2. Step 2: Convert to fraction form
    384,243.39/530,597.16 = 239,298.03/x
  3. Step 3: Cross multiply
    384,243.39x = 530,597.16 × 239,298.03
  4. Step 4: Simplify right side
    384,243.39x = 126,970,855,111.60
  5. Step 5: Solve for x
    x = 126,970,855,111.60/384,243.39
  6. Step 6: Final answer
    x = 330,443.82

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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.