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Finding the Fourth Proportional to 519,127.60, 778,691.40 and 366,912.40

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Solution

The fourth proportional to 519,127.60, 778,691.40 and 366,912.40 is: 550,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,127.60 : 778,691.40 = 366,912.40 : x
  2. Step 2: Convert to fraction form
    519,127.60/778,691.40 = 366,912.40/x
  3. Step 3: Cross multiply
    519,127.60x = 778,691.40 × 366,912.40
  4. Step 4: Simplify right side
    519,127.60x = 285,711,530,433.36
  5. Step 5: Solve for x
    x = 285,711,530,433.36/519,127.60
  6. Step 6: Final answer
    x = 550,368.60

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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.