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Finding the Fourth Proportional to 352,963.80, 487,093.12 and 191,818.82

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Solution

The fourth proportional to 352,963.80, 487,093.12 and 191,818.82 is: 264,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,963.80 : 487,093.12 = 191,818.82 : x
  2. Step 2: Convert to fraction form
    352,963.80/487,093.12 = 191,818.82/x
  3. Step 3: Cross multiply
    352,963.80x = 487,093.12 × 191,818.82
  4. Step 4: Simplify right side
    352,963.80x = 93,433,627,508.52
  5. Step 5: Solve for x
    x = 93,433,627,508.52/352,963.80
  6. Step 6: Final answer
    x = 264,711.64

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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.