Home / 619,188.43-853,689.04-401,011.64

Finding the Fourth Proportional to 619,188.43, 853,689.04 and 401,011.64

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Solution

The fourth proportional to 619,188.43, 853,689.04 and 401,011.64 is: 552,883.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,188.43 : 853,689.04 = 401,011.64 : x
  2. Step 2: Convert to fraction form
    619,188.43/853,689.04 = 401,011.64/x
  3. Step 3: Cross multiply
    619,188.43x = 853,689.04 × 401,011.64
  4. Step 4: Simplify right side
    619,188.43x = 342,339,241,980.43
  5. Step 5: Solve for x
    x = 342,339,241,980.43/619,188.43
  6. Step 6: Final answer
    x = 552,883.78

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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.