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Finding the Fourth Proportional to 384,334.20, 576,501.30 and 365,963.40

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Solution

The fourth proportional to 384,334.20, 576,501.30 and 365,963.40 is: 548,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,334.20 : 576,501.30 = 365,963.40 : x
  2. Step 2: Convert to fraction form
    384,334.20/576,501.30 = 365,963.40/x
  3. Step 3: Cross multiply
    384,334.20x = 576,501.30 × 365,963.40
  4. Step 4: Simplify right side
    384,334.20x = 210,978,375,852.42
  5. Step 5: Solve for x
    x = 210,978,375,852.42/384,334.20
  6. Step 6: Final answer
    x = 548,945.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.