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Finding the Fourth Proportional to 519,387.96, 778,766.58 and 203,466.36

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Solution

The fourth proportional to 519,387.96, 778,766.58 and 203,466.36 is: 305,076.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,387.96 : 778,766.58 = 203,466.36 : x
  2. Step 2: Convert to fraction form
    519,387.96/778,766.58 = 203,466.36/x
  3. Step 3: Cross multiply
    519,387.96x = 778,766.58 × 203,466.36
  4. Step 4: Simplify right side
    519,387.96x = 158,452,801,322.25
  5. Step 5: Solve for x
    x = 158,452,801,322.25/519,387.96
  6. Step 6: Final answer
    x = 305,076.00

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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.