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Finding the Fourth Proportional to 526,761.63, 726,932.97 and 285,044.20

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Solution

The fourth proportional to 526,761.63, 726,932.97 and 285,044.20 is: 393,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,761.63 : 726,932.97 = 285,044.20 : x
  2. Step 2: Convert to fraction form
    526,761.63/726,932.97 = 285,044.20/x
  3. Step 3: Cross multiply
    526,761.63x = 726,932.97 × 285,044.20
  4. Step 4: Simplify right side
    526,761.63x = 207,208,026,887.27
  5. Step 5: Solve for x
    x = 207,208,026,887.27/526,761.63
  6. Step 6: Final answer
    x = 393,362.04

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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.