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Finding the Fourth Proportional to 391,704.77, 537,032.26 and 384,618.89

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Solution

The fourth proportional to 391,704.77, 537,032.26 and 384,618.89 is: 527,317.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,704.77 : 537,032.26 = 384,618.89 : x
  2. Step 2: Convert to fraction form
    391,704.77/537,032.26 = 384,618.89/x
  3. Step 3: Cross multiply
    391,704.77x = 537,032.26 × 384,618.89
  4. Step 4: Simplify right side
    391,704.77x = 206,552,751,735.39
  5. Step 5: Solve for x
    x = 206,552,751,735.39/391,704.77
  6. Step 6: Final answer
    x = 527,317.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.