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Finding the Fourth Proportional to 620,593.45, 930,871.65 and 171,341.73

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Solution

The fourth proportional to 620,593.45, 930,871.65 and 171,341.73 is: 257,007.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,593.45 : 930,871.65 = 171,341.73 : x
  2. Step 2: Convert to fraction form
    620,593.45/930,871.65 = 171,341.73/x
  3. Step 3: Cross multiply
    620,593.45x = 930,871.65 × 171,341.73
  4. Step 4: Simplify right side
    620,593.45x = 159,497,160,389.43
  5. Step 5: Solve for x
    x = 159,497,160,389.43/620,593.45
  6. Step 6: Final answer
    x = 257,007.48

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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.