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Finding the Fourth Proportional to 330,616.36, 456,300.46 and 201,629.66

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Solution

The fourth proportional to 330,616.36, 456,300.46 and 201,629.66 is: 278,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,616.36 : 456,300.46 = 201,629.66 : x
  2. Step 2: Convert to fraction form
    330,616.36/456,300.46 = 201,629.66/x
  3. Step 3: Cross multiply
    330,616.36x = 456,300.46 × 201,629.66
  4. Step 4: Simplify right side
    330,616.36x = 92,003,706,607.64
  5. Step 5: Solve for x
    x = 92,003,706,607.64/330,616.36
  6. Step 6: Final answer
    x = 278,279.35

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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.