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Finding the Fourth Proportional to 371,394.67, 515,146.76 and 361,550.81

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Solution

The fourth proportional to 371,394.67, 515,146.76 and 361,550.81 is: 501,492.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,394.67 : 515,146.76 = 361,550.81 : x
  2. Step 2: Convert to fraction form
    371,394.67/515,146.76 = 361,550.81/x
  3. Step 3: Cross multiply
    371,394.67x = 515,146.76 × 361,550.81
  4. Step 4: Simplify right side
    371,394.67x = 186,251,728,346.88
  5. Step 5: Solve for x
    x = 186,251,728,346.88/371,394.67
  6. Step 6: Final answer
    x = 501,492.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.