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Finding the Fourth Proportional to 603,915.20, 905,296.80 and 224,734.40

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Solution

The fourth proportional to 603,915.20, 905,296.80 and 224,734.40 is: 336,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,915.20 : 905,296.80 = 224,734.40 : x
  2. Step 2: Convert to fraction form
    603,915.20/905,296.80 = 224,734.40/x
  3. Step 3: Cross multiply
    603,915.20x = 905,296.80 × 224,734.40
  4. Step 4: Simplify right side
    603,915.20x = 203,451,333,169.92
  5. Step 5: Solve for x
    x = 203,451,333,169.92/603,915.20
  6. Step 6: Final answer
    x = 336,887.25

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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.