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Finding the Fourth Proportional to 531,769.75, 733,844.55 and 290,057.52

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Solution

The fourth proportional to 531,769.75, 733,844.55 and 290,057.52 is: 400,280.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,769.75 : 733,844.55 = 290,057.52 : x
  2. Step 2: Convert to fraction form
    531,769.75/733,844.55 = 290,057.52/x
  3. Step 3: Cross multiply
    531,769.75x = 733,844.55 × 290,057.52
  4. Step 4: Simplify right side
    531,769.75x = 212,857,130,238.52
  5. Step 5: Solve for x
    x = 212,857,130,238.52/531,769.75
  6. Step 6: Final answer
    x = 400,280.63

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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.