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Finding the Fourth Proportional to 619,184.70, 853,683.85 and 401,007.86

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Solution

The fourth proportional to 619,184.70, 853,683.85 and 401,007.86 is: 552,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,184.70 : 853,683.85 = 401,007.86 : x
  2. Step 2: Convert to fraction form
    619,184.70/853,683.85 = 401,007.86/x
  3. Step 3: Cross multiply
    619,184.70x = 853,683.85 × 401,007.86
  4. Step 4: Simplify right side
    619,184.70x = 342,333,934,936.75
  5. Step 5: Solve for x
    x = 342,333,934,936.75/619,184.70
  6. Step 6: Final answer
    x = 552,878.54

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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.