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Finding the Fourth Proportional to 401,797.58, 554,479.02 and 220,512.48

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Solution

The fourth proportional to 401,797.58, 554,479.02 and 220,512.48 is: 304,306.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,797.58 : 554,479.02 = 220,512.48 : x
  2. Step 2: Convert to fraction form
    401,797.58/554,479.02 = 220,512.48/x
  3. Step 3: Cross multiply
    401,797.58x = 554,479.02 × 220,512.48
  4. Step 4: Simplify right side
    401,797.58x = 122,269,543,808.17
  5. Step 5: Solve for x
    x = 122,269,543,808.17/401,797.58
  6. Step 6: Final answer
    x = 304,306.33

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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.