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Finding the Fourth Proportional to 535,895.40, 803,843.10 and 220,578.60

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Solution

The fourth proportional to 535,895.40, 803,843.10 and 220,578.60 is: 330,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,895.40 : 803,843.10 = 220,578.60 : x
  2. Step 2: Convert to fraction form
    535,895.40/803,843.10 = 220,578.60/x
  3. Step 3: Cross multiply
    535,895.40x = 803,843.10 × 220,578.60
  4. Step 4: Simplify right side
    535,895.40x = 177,310,585,617.66
  5. Step 5: Solve for x
    x = 177,310,585,617.66/535,895.40
  6. Step 6: Final answer
    x = 330,867.90

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Similar ratio
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1.5x scale

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.