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Finding the Fourth Proportional to 376,528.18, 519,603.57 and 213,180.48

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Solution

The fourth proportional to 376,528.18, 519,603.57 and 213,180.48 is: 294,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,528.18 : 519,603.57 = 213,180.48 : x
  2. Step 2: Convert to fraction form
    376,528.18/519,603.57 = 213,180.48/x
  3. Step 3: Cross multiply
    376,528.18x = 519,603.57 × 213,180.48
  4. Step 4: Simplify right side
    376,528.18x = 110,769,337,000.93
  5. Step 5: Solve for x
    x = 110,769,337,000.93/376,528.18
  6. Step 6: Final answer
    x = 294,186.05

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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.