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Finding the Fourth Proportional to 375,593.66, 518,318.40 and 203,516.32

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Solution

The fourth proportional to 375,593.66, 518,318.40 and 203,516.32 is: 280,852.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,593.66 : 518,318.40 = 203,516.32 : x
  2. Step 2: Convert to fraction form
    375,593.66/518,318.40 = 203,516.32/x
  3. Step 3: Cross multiply
    375,593.66x = 518,318.40 × 203,516.32
  4. Step 4: Simplify right side
    375,593.66x = 105,486,253,356.29
  5. Step 5: Solve for x
    x = 105,486,253,356.29/375,593.66
  6. Step 6: Final answer
    x = 280,852.06

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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.