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Finding the Fourth Proportional to 353,006.76, 487,147.61 and 191,861.82

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Solution

The fourth proportional to 353,006.76, 487,147.61 and 191,861.82 is: 264,768.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,006.76 : 487,147.61 = 191,861.82 : x
  2. Step 2: Convert to fraction form
    353,006.76/487,147.61 = 191,861.82/x
  3. Step 3: Cross multiply
    353,006.76x = 487,147.61 × 191,861.82
  4. Step 4: Simplify right side
    353,006.76x = 93,465,027,063.25
  5. Step 5: Solve for x
    x = 93,465,027,063.25/353,006.76
  6. Step 6: Final answer
    x = 264,768.38

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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.