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Finding the Fourth Proportional to 1,496.88, 2,242.80 and 522.48

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Solution

The fourth proportional to 1,496.88, 2,242.80 and 522.48 is: 782.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,496.88 : 2,242.80 = 522.48 : x
  2. Step 2: Convert to fraction form
    1,496.88/2,242.80 = 522.48/x
  3. Step 3: Cross multiply
    1,496.88x = 2,242.80 × 522.48
  4. Step 4: Simplify right side
    1,496.88x = 1,171,818.14
  5. Step 5: Solve for x
    x = 1,171,818.14/1,496.88
  6. Step 6: Final answer
    x = 782.84

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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.