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Finding the Fourth Proportional to 610,964.37, 843,108.75 and 339,044.13

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Solution

The fourth proportional to 610,964.37, 843,108.75 and 339,044.13 is: 467,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,964.37 : 843,108.75 = 339,044.13 : x
  2. Step 2: Convert to fraction form
    610,964.37/843,108.75 = 339,044.13/x
  3. Step 3: Cross multiply
    610,964.37x = 843,108.75 × 339,044.13
  4. Step 4: Simplify right side
    610,964.37x = 285,851,072,639.14
  5. Step 5: Solve for x
    x = 285,851,072,639.14/610,964.37
  6. Step 6: Final answer
    x = 467,868.65

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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.