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Finding the Fourth Proportional to 2,273.36, 3,407.88 and 974

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Solution

The fourth proportional to 2,273.36, 3,407.88 and 974 is: 1,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.36 : 3,407.88 = 974 : x
  2. Step 2: Convert to fraction form
    2,273.36/3,407.88 = 974/x
  3. Step 3: Cross multiply
    2,273.36x = 3,407.88 × 974
  4. Step 4: Simplify right side
    2,273.36x = 3,319,275.12
  5. Step 5: Solve for x
    x = 3,319,275.12/2,273.36
  6. Step 6: Final answer
    x = 1,460.07

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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.