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Finding the Fourth Proportional to 353,091.74, 487,260.85 and 191,950.85

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Solution

The fourth proportional to 353,091.74, 487,260.85 and 191,950.85 is: 264,889.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,091.74 : 487,260.85 = 191,950.85 : x
  2. Step 2: Convert to fraction form
    353,091.74/487,260.85 = 191,950.85/x
  3. Step 3: Cross multiply
    353,091.74x = 487,260.85 × 191,950.85
  4. Step 4: Simplify right side
    353,091.74x = 93,530,134,329.22
  5. Step 5: Solve for x
    x = 93,530,134,329.22/353,091.74
  6. Step 6: Final answer
    x = 264,889.05

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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.