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Finding the Fourth Proportional to 561,668.71, 775,157.04 and 332,299.72

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Solution

The fourth proportional to 561,668.71, 775,157.04 and 332,299.72 is: 458,605.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,668.71 : 775,157.04 = 332,299.72 : x
  2. Step 2: Convert to fraction form
    561,668.71/775,157.04 = 332,299.72/x
  3. Step 3: Cross multiply
    561,668.71x = 775,157.04 × 332,299.72
  4. Step 4: Simplify right side
    561,668.71x = 257,584,467,348.03
  5. Step 5: Solve for x
    x = 257,584,467,348.03/561,668.71
  6. Step 6: Final answer
    x = 458,605.69

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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.