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Finding the Fourth Proportional to 519,084.60, 779,793.30 and 499,255.80

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Solution

The fourth proportional to 519,084.60, 779,793.30 and 499,255.80 is: 750,005.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,084.60 : 779,793.30 = 499,255.80 : x
  2. Step 2: Convert to fraction form
    519,084.60/779,793.30 = 499,255.80/x
  3. Step 3: Cross multiply
    519,084.60x = 779,793.30 × 499,255.80
  4. Step 4: Simplify right side
    519,084.60x = 389,316,327,826.14
  5. Step 5: Solve for x
    x = 389,316,327,826.14/519,084.60
  6. Step 6: Final answer
    x = 750,005.54

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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.