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Finding the Fourth Proportional to 635,934.78, 877,594.77 and 345,549.11

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Solution

The fourth proportional to 635,934.78, 877,594.77 and 345,549.11 is: 476,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,934.78 : 877,594.77 = 345,549.11 : x
  2. Step 2: Convert to fraction form
    635,934.78/877,594.77 = 345,549.11/x
  3. Step 3: Cross multiply
    635,934.78x = 877,594.77 × 345,549.11
  4. Step 4: Simplify right side
    635,934.78x = 303,252,087,326.18
  5. Step 5: Solve for x
    x = 303,252,087,326.18/635,934.78
  6. Step 6: Final answer
    x = 476,860.36

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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.