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Finding the Fourth Proportional to 1,040.66, 1,436.10 and 598.54

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Solution

The fourth proportional to 1,040.66, 1,436.10 and 598.54 is: 825.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.66 : 1,436.10 = 598.54 : x
  2. Step 2: Convert to fraction form
    1,040.66/1,436.10 = 598.54/x
  3. Step 3: Cross multiply
    1,040.66x = 1,436.10 × 598.54
  4. Step 4: Simplify right side
    1,040.66x = 859,563.29
  5. Step 5: Solve for x
    x = 859,563.29/1,040.66
  6. Step 6: Final answer
    x = 825.98

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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.