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Finding the Fourth Proportional to 357,654.20, 536,481.30 and 191,766.20

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Solution

The fourth proportional to 357,654.20, 536,481.30 and 191,766.20 is: 287,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,654.20 : 536,481.30 = 191,766.20 : x
  2. Step 2: Convert to fraction form
    357,654.20/536,481.30 = 191,766.20/x
  3. Step 3: Cross multiply
    357,654.20x = 536,481.30 × 191,766.20
  4. Step 4: Simplify right side
    357,654.20x = 102,878,980,272.06
  5. Step 5: Solve for x
    x = 102,878,980,272.06/357,654.20
  6. Step 6: Final answer
    x = 287,649.30

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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.