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Finding the Fourth Proportional to 400,626.02, 552,862.89 and 239,473.22

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Solution

The fourth proportional to 400,626.02, 552,862.89 and 239,473.22 is: 330,472.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,626.02 : 552,862.89 = 239,473.22 : x
  2. Step 2: Convert to fraction form
    400,626.02/552,862.89 = 239,473.22/x
  3. Step 3: Cross multiply
    400,626.02x = 552,862.89 × 239,473.22
  4. Step 4: Simplify right side
    400,626.02x = 132,395,856,486.81
  5. Step 5: Solve for x
    x = 132,395,856,486.81/400,626.02
  6. Step 6: Final answer
    x = 330,472.44

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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.