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Finding the Fourth Proportional to 635,294.54, 876,720.61 and 348,815.77

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Solution

The fourth proportional to 635,294.54, 876,720.61 and 348,815.77 is: 481,373.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,294.54 : 876,720.61 = 348,815.77 : x
  2. Step 2: Convert to fraction form
    635,294.54/876,720.61 = 348,815.77/x
  3. Step 3: Cross multiply
    635,294.54x = 876,720.61 × 348,815.77
  4. Step 4: Simplify right side
    635,294.54x = 305,813,972,896.24
  5. Step 5: Solve for x
    x = 305,813,972,896.24/635,294.54
  6. Step 6: Final answer
    x = 481,373.52

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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.