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Finding the Fourth Proportional to 2,406.95, 3,610.95 and 741.08

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Solution

The fourth proportional to 2,406.95, 3,610.95 and 741.08 is: 1,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.95 : 3,610.95 = 741.08 : x
  2. Step 2: Convert to fraction form
    2,406.95/3,610.95 = 741.08/x
  3. Step 3: Cross multiply
    2,406.95x = 3,610.95 × 741.08
  4. Step 4: Simplify right side
    2,406.95x = 2,676,009.07
  5. Step 5: Solve for x
    x = 2,676,009.07/2,406.95
  6. Step 6: Final answer
    x = 1,111.78

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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.