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Finding the Fourth Proportional to 376,643.01, 519,882.54 and 223,706.10

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Solution

The fourth proportional to 376,643.01, 519,882.54 and 223,706.10 is: 308,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,643.01 : 519,882.54 = 223,706.10 : x
  2. Step 2: Convert to fraction form
    376,643.01/519,882.54 = 223,706.10/x
  3. Step 3: Cross multiply
    376,643.01x = 519,882.54 × 223,706.10
  4. Step 4: Simplify right side
    376,643.01x = 116,300,895,481.49
  5. Step 5: Solve for x
    x = 116,300,895,481.49/376,643.01
  6. Step 6: Final answer
    x = 308,782.83

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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.