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Finding the Fourth Proportional to 218,630.70, 327,946.05 and 194,136.30

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Solution

The fourth proportional to 218,630.70, 327,946.05 and 194,136.30 is: 291,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,630.70 : 327,946.05 = 194,136.30 : x
  2. Step 2: Convert to fraction form
    218,630.70/327,946.05 = 194,136.30/x
  3. Step 3: Cross multiply
    218,630.70x = 327,946.05 × 194,136.30
  4. Step 4: Simplify right side
    218,630.70x = 63,666,232,746.62
  5. Step 5: Solve for x
    x = 63,666,232,746.62/218,630.70
  6. Step 6: Final answer
    x = 291,204.45

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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.