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Finding the Fourth Proportional to 635,492.63, 876,976.42 and 345,101.69

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Solution

The fourth proportional to 635,492.63, 876,976.42 and 345,101.69 is: 476,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,492.63 : 876,976.42 = 345,101.69 : x
  2. Step 2: Convert to fraction form
    635,492.63/876,976.42 = 345,101.69/x
  3. Step 3: Cross multiply
    635,492.63x = 876,976.42 × 345,101.69
  4. Step 4: Simplify right side
    635,492.63x = 302,646,044,632.15
  5. Step 5: Solve for x
    x = 302,646,044,632.15/635,492.63
  6. Step 6: Final answer
    x = 476,238.48

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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.