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Finding the Fourth Proportional to 353,062.70, 487,236 and 191,928.56

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Solution

The fourth proportional to 353,062.70, 487,236 and 191,928.56 is: 264,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,062.70 : 487,236 = 191,928.56 : x
  2. Step 2: Convert to fraction form
    353,062.70/487,236 = 191,928.56/x
  3. Step 3: Cross multiply
    353,062.70x = 487,236 × 191,928.56
  4. Step 4: Simplify right side
    353,062.70x = 93,514,503,860.16
  5. Step 5: Solve for x
    x = 93,514,503,860.16/353,062.70
  6. Step 6: Final answer
    x = 264,866.56

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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.