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Finding the Fourth Proportional to 399,812.60, 599,500.20 and 162,887.60

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Solution

The fourth proportional to 399,812.60, 599,500.20 and 162,887.60 is: 244,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,812.60 : 599,500.20 = 162,887.60 : x
  2. Step 2: Convert to fraction form
    399,812.60/599,500.20 = 162,887.60/x
  3. Step 3: Cross multiply
    399,812.60x = 599,500.20 × 162,887.60
  4. Step 4: Simplify right side
    399,812.60x = 97,651,148,777.52
  5. Step 5: Solve for x
    x = 97,651,148,777.52/399,812.60
  6. Step 6: Final answer
    x = 244,242.30

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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.