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Finding the Fourth Proportional to 619,241.15, 853,761.67 and 401,064.82

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Solution

The fourth proportional to 619,241.15, 853,761.67 and 401,064.82 is: 552,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,241.15 : 853,761.67 = 401,064.82 : x
  2. Step 2: Convert to fraction form
    619,241.15/853,761.67 = 401,064.82/x
  3. Step 3: Cross multiply
    619,241.15x = 853,761.67 × 401,064.82
  4. Step 4: Simplify right side
    619,241.15x = 342,413,767,364.38
  5. Step 5: Solve for x
    x = 342,413,767,364.38/619,241.15
  6. Step 6: Final answer
    x = 552,957.06

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1.5x scale

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.