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Finding the Fourth Proportional to 626,516.92, 864,594.12 and 340,036.96

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Solution

The fourth proportional to 626,516.92, 864,594.12 and 340,036.96 is: 469,251.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,516.92 : 864,594.12 = 340,036.96 : x
  2. Step 2: Convert to fraction form
    626,516.92/864,594.12 = 340,036.96/x
  3. Step 3: Cross multiply
    626,516.92x = 864,594.12 × 340,036.96
  4. Step 4: Simplify right side
    626,516.92x = 293,993,956,198.68
  5. Step 5: Solve for x
    x = 293,993,956,198.68/626,516.92
  6. Step 6: Final answer
    x = 469,251.42

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.