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Finding the Fourth Proportional to 628,064.37, 866,764.26 and 341,578.71

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Solution

The fourth proportional to 628,064.37, 866,764.26 and 341,578.71 is: 471,397.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,064.37 : 866,764.26 = 341,578.71 : x
  2. Step 2: Convert to fraction form
    628,064.37/866,764.26 = 341,578.71/x
  3. Step 3: Cross multiply
    628,064.37x = 866,764.26 × 341,578.71
  4. Step 4: Simplify right side
    628,064.37x = 296,068,217,804.91
  5. Step 5: Solve for x
    x = 296,068,217,804.91/628,064.37
  6. Step 6: Final answer
    x = 471,397.89

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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.