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Finding the Fourth Proportional to 516,706.05, 775,207.31 and 217,032.51

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Solution

The fourth proportional to 516,706.05, 775,207.31 and 217,032.51 is: 325,611.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,706.05 : 775,207.31 = 217,032.51 : x
  2. Step 2: Convert to fraction form
    516,706.05/775,207.31 = 217,032.51/x
  3. Step 3: Cross multiply
    516,706.05x = 775,207.31 × 217,032.51
  4. Step 4: Simplify right side
    516,706.05x = 168,245,187,174.49
  5. Step 5: Solve for x
    x = 168,245,187,174.49/516,706.05
  6. Step 6: Final answer
    x = 325,611.03

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Similar ratio
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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.