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Finding the Fourth Proportional to 621.26, 935.58 and 541.07

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Solution

The fourth proportional to 621.26, 935.58 and 541.07 is: 814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.26 : 935.58 = 541.07 : x
  2. Step 2: Convert to fraction form
    621.26/935.58 = 541.07/x
  3. Step 3: Cross multiply
    621.26x = 935.58 × 541.07
  4. Step 4: Simplify right side
    621.26x = 506,209.59
  5. Step 5: Solve for x
    x = 506,209.59/621.26
  6. Step 6: Final answer
    x = 814.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.