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Finding the Fourth Proportional to 635,732.43, 878,087.84 and 475,300.59

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Solution

The fourth proportional to 635,732.43, 878,087.84 and 475,300.59 is: 656,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,732.43 : 878,087.84 = 475,300.59 : x
  2. Step 2: Convert to fraction form
    635,732.43/878,087.84 = 475,300.59/x
  3. Step 3: Cross multiply
    635,732.43x = 878,087.84 × 475,300.59
  4. Step 4: Simplify right side
    635,732.43x = 417,355,666,047.32
  5. Step 5: Solve for x
    x = 417,355,666,047.32/635,732.43
  6. Step 6: Final answer
    x = 656,495.79

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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.