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Finding the Fourth Proportional to 519,118.40, 778,823.40 and 252,887.60

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Solution

The fourth proportional to 519,118.40, 778,823.40 and 252,887.60 is: 379,402.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,118.40 : 778,823.40 = 252,887.60 : x
  2. Step 2: Convert to fraction form
    519,118.40/778,823.40 = 252,887.60/x
  3. Step 3: Cross multiply
    519,118.40x = 778,823.40 × 252,887.60
  4. Step 4: Simplify right side
    519,118.40x = 196,954,780,449.84
  5. Step 5: Solve for x
    x = 196,954,780,449.84/519,118.40
  6. Step 6: Final answer
    x = 379,402.43

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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.