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Finding the Fourth Proportional to 548,645.40, 822,968.10 and 193,656.60

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Solution

The fourth proportional to 548,645.40, 822,968.10 and 193,656.60 is: 290,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,645.40 : 822,968.10 = 193,656.60 : x
  2. Step 2: Convert to fraction form
    548,645.40/822,968.10 = 193,656.60/x
  3. Step 3: Cross multiply
    548,645.40x = 822,968.10 × 193,656.60
  4. Step 4: Simplify right side
    548,645.40x = 159,373,204,154.46
  5. Step 5: Solve for x
    x = 159,373,204,154.46/548,645.40
  6. Step 6: Final answer
    x = 290,484.90

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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.