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Finding the Fourth Proportional to 485,172.40, 727,758.60 and 463,399.60

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Solution

The fourth proportional to 485,172.40, 727,758.60 and 463,399.60 is: 695,099.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,172.40 : 727,758.60 = 463,399.60 : x
  2. Step 2: Convert to fraction form
    485,172.40/727,758.60 = 463,399.60/x
  3. Step 3: Cross multiply
    485,172.40x = 727,758.60 × 463,399.60
  4. Step 4: Simplify right side
    485,172.40x = 337,243,044,136.56
  5. Step 5: Solve for x
    x = 337,243,044,136.56/485,172.40
  6. Step 6: Final answer
    x = 695,099.40

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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.