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Finding the Fourth Proportional to 1,750.04, 2,623.44 and 980

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Solution

The fourth proportional to 1,750.04, 2,623.44 and 980 is: 1,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.04 : 2,623.44 = 980 : x
  2. Step 2: Convert to fraction form
    1,750.04/2,623.44 = 980/x
  3. Step 3: Cross multiply
    1,750.04x = 2,623.44 × 980
  4. Step 4: Simplify right side
    1,750.04x = 2,570,971.20
  5. Step 5: Solve for x
    x = 2,570,971.20/1,750.04
  6. Step 6: Final answer
    x = 1,469.09

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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.