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Finding the Fourth Proportional to 519,469.60, 778,644.72 and 253,409.44

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Solution

The fourth proportional to 519,469.60, 778,644.72 and 253,409.44 is: 379,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,469.60 : 778,644.72 = 253,409.44 : x
  2. Step 2: Convert to fraction form
    519,469.60/778,644.72 = 253,409.44/x
  3. Step 3: Cross multiply
    519,469.60x = 778,644.72 × 253,409.44
  4. Step 4: Simplify right side
    519,469.60x = 197,315,922,454.16
  5. Step 5: Solve for x
    x = 197,315,922,454.16/519,469.60
  6. Step 6: Final answer
    x = 379,841.13

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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.