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Finding the Fourth Proportional to 1,059.66, 1,462.18 and 587.48

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Solution

The fourth proportional to 1,059.66, 1,462.18 and 587.48 is: 810.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.66 : 1,462.18 = 587.48 : x
  2. Step 2: Convert to fraction form
    1,059.66/1,462.18 = 587.48/x
  3. Step 3: Cross multiply
    1,059.66x = 1,462.18 × 587.48
  4. Step 4: Simplify right side
    1,059.66x = 859,001.51
  5. Step 5: Solve for x
    x = 859,001.51/1,059.66
  6. Step 6: Final answer
    x = 810.64

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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.