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Finding the Fourth Proportional to 388,060.66, 535,443.06 and 226,884.52

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Solution

The fourth proportional to 388,060.66, 535,443.06 and 226,884.52 is: 313,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,060.66 : 535,443.06 = 226,884.52 : x
  2. Step 2: Convert to fraction form
    388,060.66/535,443.06 = 226,884.52/x
  3. Step 3: Cross multiply
    388,060.66x = 535,443.06 × 226,884.52
  4. Step 4: Simplify right side
    388,060.66x = 121,483,741,655.43
  5. Step 5: Solve for x
    x = 121,483,741,655.43/388,060.66
  6. Step 6: Final answer
    x = 313,053.48

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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.