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Finding the Fourth Proportional to 316,838.78, 437,237.43 and 173,604.26

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Solution

The fourth proportional to 316,838.78, 437,237.43 and 173,604.26 is: 239,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,838.78 : 437,237.43 = 173,604.26 : x
  2. Step 2: Convert to fraction form
    316,838.78/437,237.43 = 173,604.26/x
  3. Step 3: Cross multiply
    316,838.78x = 437,237.43 × 173,604.26
  4. Step 4: Simplify right side
    316,838.78x = 75,906,280,479.45
  5. Step 5: Solve for x
    x = 75,906,280,479.45/316,838.78
  6. Step 6: Final answer
    x = 239,573.83

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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.