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Finding the Fourth Proportional to 543,355.89, 814,717.72 and 363,646.45

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Solution

The fourth proportional to 543,355.89, 814,717.72 and 363,646.45 is: 545,258.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,355.89 : 814,717.72 = 363,646.45 : x
  2. Step 2: Convert to fraction form
    543,355.89/814,717.72 = 363,646.45/x
  3. Step 3: Cross multiply
    543,355.89x = 814,717.72 × 363,646.45
  4. Step 4: Simplify right side
    543,355.89x = 296,269,206,630.09
  5. Step 5: Solve for x
    x = 296,269,206,630.09/543,355.89
  6. Step 6: Final answer
    x = 545,258.11

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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.