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Finding the Fourth Proportional to 2,292.78, 3,435.96 and 974.93

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Solution

The fourth proportional to 2,292.78, 3,435.96 and 974.93 is: 1,461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.78 : 3,435.96 = 974.93 : x
  2. Step 2: Convert to fraction form
    2,292.78/3,435.96 = 974.93/x
  3. Step 3: Cross multiply
    2,292.78x = 3,435.96 × 974.93
  4. Step 4: Simplify right side
    2,292.78x = 3,349,820.48
  5. Step 5: Solve for x
    x = 3,349,820.48/2,292.78
  6. Step 6: Final answer
    x = 1,461.03

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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.