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Finding the Fourth Proportional to 866,793.10, 1,299,800.85 and 334,137.10

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Solution

The fourth proportional to 866,793.10, 1,299,800.85 and 334,137.10 is: 501,055.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,793.10 : 1,299,800.85 = 334,137.10 : x
  2. Step 2: Convert to fraction form
    866,793.10/1,299,800.85 = 334,137.10/x
  3. Step 3: Cross multiply
    866,793.10x = 1,299,800.85 × 334,137.10
  4. Step 4: Simplify right side
    866,793.10x = 434,311,686,596.54
  5. Step 5: Solve for x
    x = 434,311,686,596.54/866,793.10
  6. Step 6: Final answer
    x = 501,055.77

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Double scale
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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.