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Finding the Fourth Proportional to 375,791.50, 518,864.43 and 241,888.78

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Solution

The fourth proportional to 375,791.50, 518,864.43 and 241,888.78 is: 333,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,791.50 : 518,864.43 = 241,888.78 : x
  2. Step 2: Convert to fraction form
    375,791.50/518,864.43 = 241,888.78/x
  3. Step 3: Cross multiply
    375,791.50x = 518,864.43 × 241,888.78
  4. Step 4: Simplify right side
    375,791.50x = 125,507,483,958.10
  5. Step 5: Solve for x
    x = 125,507,483,958.10/375,791.50
  6. Step 6: Final answer
    x = 333,981.70

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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.