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Finding the Fourth Proportional to 635,345.64, 876,855.98 and 363,375.79

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Solution

The fourth proportional to 635,345.64, 876,855.98 and 363,375.79 is: 501,503.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,345.64 : 876,855.98 = 363,375.79 : x
  2. Step 2: Convert to fraction form
    635,345.64/876,855.98 = 363,375.79/x
  3. Step 3: Cross multiply
    635,345.64x = 876,855.98 × 363,375.79
  4. Step 4: Simplify right side
    635,345.64x = 318,628,233,165.02
  5. Step 5: Solve for x
    x = 318,628,233,165.02/635,345.64
  6. Step 6: Final answer
    x = 501,503.77

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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.