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Finding the Fourth Proportional to 341,669.40, 512,504.10 and 217,560.60

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Solution

The fourth proportional to 341,669.40, 512,504.10 and 217,560.60 is: 326,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,669.40 : 512,504.10 = 217,560.60 : x
  2. Step 2: Convert to fraction form
    341,669.40/512,504.10 = 217,560.60/x
  3. Step 3: Cross multiply
    341,669.40x = 512,504.10 × 217,560.60
  4. Step 4: Simplify right side
    341,669.40x = 111,500,699,498.46
  5. Step 5: Solve for x
    x = 111,500,699,498.46/341,669.40
  6. Step 6: Final answer
    x = 326,340.90

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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.