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Finding the Fourth Proportional to 388,093.84, 535,373.44 and 226,843.56

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Solution

The fourth proportional to 388,093.84, 535,373.44 and 226,843.56 is: 312,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,093.84 : 535,373.44 = 226,843.56 : x
  2. Step 2: Convert to fraction form
    388,093.84/535,373.44 = 226,843.56/x
  3. Step 3: Cross multiply
    388,093.84x = 535,373.44 × 226,843.56
  4. Step 4: Simplify right side
    388,093.84x = 121,446,017,059.05
  5. Step 5: Solve for x
    x = 121,446,017,059.05/388,093.84
  6. Step 6: Final answer
    x = 312,929.51

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1.5x scale

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.