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Finding the Fourth Proportional to 607,136.40, 910,704.60 and 327,200.40

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Solution

The fourth proportional to 607,136.40, 910,704.60 and 327,200.40 is: 490,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,136.40 : 910,704.60 = 327,200.40 : x
  2. Step 2: Convert to fraction form
    607,136.40/910,704.60 = 327,200.40/x
  3. Step 3: Cross multiply
    607,136.40x = 910,704.60 × 327,200.40
  4. Step 4: Simplify right side
    607,136.40x = 297,982,909,401.84
  5. Step 5: Solve for x
    x = 297,982,909,401.84/607,136.40
  6. Step 6: Final answer
    x = 490,800.60

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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.