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Finding the Fourth Proportional to 376,936.52, 519,750.16 and 353,021.66

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Solution

The fourth proportional to 376,936.52, 519,750.16 and 353,021.66 is: 486,774.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,936.52 : 519,750.16 = 353,021.66 : x
  2. Step 2: Convert to fraction form
    376,936.52/519,750.16 = 353,021.66/x
  3. Step 3: Cross multiply
    376,936.52x = 519,750.16 × 353,021.66
  4. Step 4: Simplify right side
    376,936.52x = 183,483,064,268.47
  5. Step 5: Solve for x
    x = 183,483,064,268.47/376,936.52
  6. Step 6: Final answer
    x = 486,774.44

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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.