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Finding the Fourth Proportional to 519,129.60, 778,694.40 and 366,914.40

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Solution

The fourth proportional to 519,129.60, 778,694.40 and 366,914.40 is: 550,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,129.60 : 778,694.40 = 366,914.40 : x
  2. Step 2: Convert to fraction form
    519,129.60/778,694.40 = 366,914.40/x
  3. Step 3: Cross multiply
    519,129.60x = 778,694.40 × 366,914.40
  4. Step 4: Simplify right side
    519,129.60x = 285,714,188,559.36
  5. Step 5: Solve for x
    x = 285,714,188,559.36/519,129.60
  6. Step 6: Final answer
    x = 550,371.60

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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.