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Finding the Fourth Proportional to 340,571.54, 469,988.55 and 197,414.54

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Solution

The fourth proportional to 340,571.54, 469,988.55 and 197,414.54 is: 272,431.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,571.54 : 469,988.55 = 197,414.54 : x
  2. Step 2: Convert to fraction form
    340,571.54/469,988.55 = 197,414.54/x
  3. Step 3: Cross multiply
    340,571.54x = 469,988.55 × 197,414.54
  4. Step 4: Simplify right side
    340,571.54x = 92,782,573,403.52
  5. Step 5: Solve for x
    x = 92,782,573,403.52/340,571.54
  6. Step 6: Final answer
    x = 272,431.96

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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.