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Finding the Fourth Proportional to 352,913.62, 487,019.85 and 191,768.66

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Solution

The fourth proportional to 352,913.62, 487,019.85 and 191,768.66 is: 264,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,913.62 : 487,019.85 = 191,768.66 : x
  2. Step 2: Convert to fraction form
    352,913.62/487,019.85 = 191,768.66/x
  3. Step 3: Cross multiply
    352,913.62x = 487,019.85 × 191,768.66
  4. Step 4: Simplify right side
    352,913.62x = 93,395,144,027.90
  5. Step 5: Solve for x
    x = 93,395,144,027.90/352,913.62
  6. Step 6: Final answer
    x = 264,640.24

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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.