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Finding the Fourth Proportional to 593,906.80, 890,968.20 and 194,436.40

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Solution

The fourth proportional to 593,906.80, 890,968.20 and 194,436.40 is: 291,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    593,906.80 : 890,968.20 = 194,436.40 : x
  2. Step 2: Convert to fraction form
    593,906.80/890,968.20 = 194,436.40/x
  3. Step 3: Cross multiply
    593,906.80x = 890,968.20 × 194,436.40
  4. Step 4: Simplify right side
    593,906.80x = 173,236,649,322.48
  5. Step 5: Solve for x
    x = 173,236,649,322.48/593,906.80
  6. Step 6: Final answer
    x = 291,689.96

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Double scale
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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.