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Finding the Fourth Proportional to 303,481.90, 418,742.40 and 174,395.44

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Solution

The fourth proportional to 303,481.90, 418,742.40 and 174,395.44 is: 240,629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,481.90 : 418,742.40 = 174,395.44 : x
  2. Step 2: Convert to fraction form
    303,481.90/418,742.40 = 174,395.44/x
  3. Step 3: Cross multiply
    303,481.90x = 418,742.40 × 174,395.44
  4. Step 4: Simplify right side
    303,481.90x = 73,026,765,094.66
  5. Step 5: Solve for x
    x = 73,026,765,094.66/303,481.90
  6. Step 6: Final answer
    x = 240,629.72

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1.5x scale

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.