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Finding the Fourth Proportional to 635,732.68, 878,088.18 and 475,300.84

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Solution

The fourth proportional to 635,732.68, 878,088.18 and 475,300.84 is: 656,496.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,732.68 : 878,088.18 = 475,300.84 : x
  2. Step 2: Convert to fraction form
    635,732.68/878,088.18 = 475,300.84/x
  3. Step 3: Cross multiply
    635,732.68x = 878,088.18 × 475,300.84
  4. Step 4: Simplify right side
    635,732.68x = 417,356,049,548.07
  5. Step 5: Solve for x
    x = 417,356,049,548.07/635,732.68
  6. Step 6: Final answer
    x = 656,496.14

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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.