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Finding the Fourth Proportional to 432,703.05, 597,128.70 and 239,105.37

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Solution

The fourth proportional to 432,703.05, 597,128.70 and 239,105.37 is: 329,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,703.05 : 597,128.70 = 239,105.37 : x
  2. Step 2: Convert to fraction form
    432,703.05/597,128.70 = 239,105.37/x
  3. Step 3: Cross multiply
    432,703.05x = 597,128.70 × 239,105.37
  4. Step 4: Simplify right side
    432,703.05x = 142,776,678,751.12
  5. Step 5: Solve for x
    x = 142,776,678,751.12/432,703.05
  6. Step 6: Final answer
    x = 329,964.58

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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.