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Finding the Fourth Proportional to 1,175.01, 1,762.47 and 559.16

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Solution

The fourth proportional to 1,175.01, 1,762.47 and 559.16 is: 838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.01 : 1,762.47 = 559.16 : x
  2. Step 2: Convert to fraction form
    1,175.01/1,762.47 = 559.16/x
  3. Step 3: Cross multiply
    1,175.01x = 1,762.47 × 559.16
  4. Step 4: Simplify right side
    1,175.01x = 985,502.73
  5. Step 5: Solve for x
    x = 985,502.73/1,175.01
  6. Step 6: Final answer
    x = 838.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.