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Finding the Fourth Proportional to 402,093.60, 603,601.20 and 235,975.20

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Solution

The fourth proportional to 402,093.60, 603,601.20 and 235,975.20 is: 354,233.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,093.60 : 603,601.20 = 235,975.20 : x
  2. Step 2: Convert to fraction form
    402,093.60/603,601.20 = 235,975.20/x
  3. Step 3: Cross multiply
    402,093.60x = 603,601.20 × 235,975.20
  4. Step 4: Simplify right side
    402,093.60x = 142,434,913,890.24
  5. Step 5: Solve for x
    x = 142,434,913,890.24/402,093.60
  6. Step 6: Final answer
    x = 354,233.23

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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.