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Finding the Fourth Proportional to 402,321.60, 603,871.20 and 244,857.60

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Solution

The fourth proportional to 402,321.60, 603,871.20 and 244,857.60 is: 367,523.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,321.60 : 603,871.20 = 244,857.60 : x
  2. Step 2: Convert to fraction form
    402,321.60/603,871.20 = 244,857.60/x
  3. Step 3: Cross multiply
    402,321.60x = 603,871.20 × 244,857.60
  4. Step 4: Simplify right side
    402,321.60x = 147,862,452,741.12
  5. Step 5: Solve for x
    x = 147,862,452,741.12/402,321.60
  6. Step 6: Final answer
    x = 367,523.03

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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.