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Finding the Fourth Proportional to 437,696.45, 656,602.09 and 171,422.36

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Solution

The fourth proportional to 437,696.45, 656,602.09 and 171,422.36 is: 257,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,696.45 : 656,602.09 = 171,422.36 : x
  2. Step 2: Convert to fraction form
    437,696.45/656,602.09 = 171,422.36/x
  3. Step 3: Cross multiply
    437,696.45x = 656,602.09 × 171,422.36
  4. Step 4: Simplify right side
    437,696.45x = 112,556,279,848.73
  5. Step 5: Solve for x
    x = 112,556,279,848.73/437,696.45
  6. Step 6: Final answer
    x = 257,156.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.