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Finding the Fourth Proportional to 526,759.94, 726,930.64 and 285,042.51

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Solution

The fourth proportional to 526,759.94, 726,930.64 and 285,042.51 is: 393,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,759.94 : 726,930.64 = 285,042.51 : x
  2. Step 2: Convert to fraction form
    526,759.94/726,930.64 = 285,042.51/x
  3. Step 3: Cross multiply
    526,759.94x = 726,930.64 × 285,042.51
  4. Step 4: Simplify right side
    526,759.94x = 207,206,134,221.51
  5. Step 5: Solve for x
    x = 207,206,134,221.51/526,759.94
  6. Step 6: Final answer
    x = 393,359.70

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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.