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Finding the Fourth Proportional to 285,277.26, 393,694.92 and 157,952.87

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Solution

The fourth proportional to 285,277.26, 393,694.92 and 157,952.87 is: 217,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,277.26 : 393,694.92 = 157,952.87 : x
  2. Step 2: Convert to fraction form
    285,277.26/393,694.92 = 157,952.87/x
  3. Step 3: Cross multiply
    285,277.26x = 393,694.92 × 157,952.87
  4. Step 4: Simplify right side
    285,277.26x = 62,185,240,549.95
  5. Step 5: Solve for x
    x = 62,185,240,549.95/285,277.26
  6. Step 6: Final answer
    x = 217,981.76

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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.