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Finding the Fourth Proportional to 573,612.10, 860,418.15 and 307,891.60

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Solution

The fourth proportional to 573,612.10, 860,418.15 and 307,891.60 is: 461,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,612.10 : 860,418.15 = 307,891.60 : x
  2. Step 2: Convert to fraction form
    573,612.10/860,418.15 = 307,891.60/x
  3. Step 3: Cross multiply
    573,612.10x = 860,418.15 × 307,891.60
  4. Step 4: Simplify right side
    573,612.10x = 264,915,520,872.54
  5. Step 5: Solve for x
    x = 264,915,520,872.54/573,612.10
  6. Step 6: Final answer
    x = 461,837.40

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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.