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Finding the Fourth Proportional to 548,615.10, 822,922.65 and 268,679.10

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Solution

The fourth proportional to 548,615.10, 822,922.65 and 268,679.10 is: 403,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,615.10 : 822,922.65 = 268,679.10 : x
  2. Step 2: Convert to fraction form
    548,615.10/822,922.65 = 268,679.10/x
  3. Step 3: Cross multiply
    548,615.10x = 822,922.65 × 268,679.10
  4. Step 4: Simplify right side
    548,615.10x = 221,102,116,971.62
  5. Step 5: Solve for x
    x = 221,102,116,971.62/548,615.10
  6. Step 6: Final answer
    x = 403,018.65

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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.