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Finding the Fourth Proportional to 526,786.34, 726,959.61 and 285,063.62

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Solution

The fourth proportional to 526,786.34, 726,959.61 and 285,063.62 is: 393,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,786.34 : 726,959.61 = 285,063.62 : x
  2. Step 2: Convert to fraction form
    526,786.34/726,959.61 = 285,063.62/x
  3. Step 3: Cross multiply
    526,786.34x = 726,959.61 × 285,063.62
  4. Step 4: Simplify right side
    526,786.34x = 207,229,738,020.39
  5. Step 5: Solve for x
    x = 207,229,738,020.39/526,786.34
  6. Step 6: Final answer
    x = 393,384.80

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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.