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Finding the Fourth Proportional to 474,618.61, 654,940.78 and 270,678.16

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Solution

The fourth proportional to 474,618.61, 654,940.78 and 270,678.16 is: 373,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,618.61 : 654,940.78 = 270,678.16 : x
  2. Step 2: Convert to fraction form
    474,618.61/654,940.78 = 270,678.16/x
  3. Step 3: Cross multiply
    474,618.61x = 654,940.78 × 270,678.16
  4. Step 4: Simplify right side
    474,618.61x = 177,278,165,239.37
  5. Step 5: Solve for x
    x = 177,278,165,239.37/474,618.61
  6. Step 6: Final answer
    x = 373,517.10

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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.