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Finding the Fourth Proportional to 1,494.45, 2,061.32 and 904.23

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Solution

The fourth proportional to 1,494.45, 2,061.32 and 904.23 is: 1,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.45 : 2,061.32 = 904.23 : x
  2. Step 2: Convert to fraction form
    1,494.45/2,061.32 = 904.23/x
  3. Step 3: Cross multiply
    1,494.45x = 2,061.32 × 904.23
  4. Step 4: Simplify right side
    1,494.45x = 1,863,902.86
  5. Step 5: Solve for x
    x = 1,863,902.86/1,494.45
  6. Step 6: Final answer
    x = 1,247.22

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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.