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Finding the Fourth Proportional to 927,768.80, 1,391,458.80 and 454,793.60

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Solution

The fourth proportional to 927,768.80, 1,391,458.80 and 454,793.60 is: 682,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,768.80 : 1,391,458.80 = 454,793.60 : x
  2. Step 2: Convert to fraction form
    927,768.80/1,391,458.80 = 454,793.60/x
  3. Step 3: Cross multiply
    927,768.80x = 1,391,458.80 × 454,793.60
  4. Step 4: Simplify right side
    927,768.80x = 632,826,556,903.68
  5. Step 5: Solve for x
    x = 632,826,556,903.68/927,768.80
  6. Step 6: Final answer
    x = 682,095.10

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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.