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Finding the Fourth Proportional to 354,223.49, 488,551.91 and 226,910.93

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Solution

The fourth proportional to 354,223.49, 488,551.91 and 226,910.93 is: 312,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,223.49 : 488,551.91 = 226,910.93 : x
  2. Step 2: Convert to fraction form
    354,223.49/488,551.91 = 226,910.93/x
  3. Step 3: Cross multiply
    354,223.49x = 488,551.91 × 226,910.93
  4. Step 4: Simplify right side
    354,223.49x = 110,857,764,674.06
  5. Step 5: Solve for x
    x = 110,857,764,674.06/354,223.49
  6. Step 6: Final answer
    x = 312,959.95

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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.