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Finding the Fourth Proportional to 352,630.78, 486,631.46 and 191,488.52

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Solution

The fourth proportional to 352,630.78, 486,631.46 and 191,488.52 is: 264,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,630.78 : 486,631.46 = 191,488.52 : x
  2. Step 2: Convert to fraction form
    352,630.78/486,631.46 = 191,488.52/x
  3. Step 3: Cross multiply
    352,630.78x = 486,631.46 × 191,488.52
  4. Step 4: Simplify right side
    352,630.78x = 93,184,338,060.84
  5. Step 5: Solve for x
    x = 93,184,338,060.84/352,630.78
  6. Step 6: Final answer
    x = 264,254.69

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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.