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Finding the Fourth Proportional to 935.62, 1,291.11 and 537.00

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Solution

The fourth proportional to 935.62, 1,291.11 and 537.00 is: 741.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    935.62 : 1,291.11 = 537.00 : x
  2. Step 2: Convert to fraction form
    935.62/1,291.11 = 537.00/x
  3. Step 3: Cross multiply
    935.62x = 1,291.11 × 537.00
  4. Step 4: Simplify right side
    935.62x = 693,316.93
  5. Step 5: Solve for x
    x = 693,316.93/935.62
  6. Step 6: Final answer
    x = 741.03

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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.