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Finding the Fourth Proportional to 619,177.50, 853,673.93 and 401,000.66

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Solution

The fourth proportional to 619,177.50, 853,673.93 and 401,000.66 is: 552,868.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,177.50 : 853,673.93 = 401,000.66 : x
  2. Step 2: Convert to fraction form
    619,177.50/853,673.93 = 401,000.66/x
  3. Step 3: Cross multiply
    619,177.50x = 853,673.93 × 401,000.66
  4. Step 4: Simplify right side
    619,177.50x = 342,323,809,354.79
  5. Step 5: Solve for x
    x = 342,323,809,354.79/619,177.50
  6. Step 6: Final answer
    x = 552,868.62

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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.