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Finding the Fourth Proportional to 558,067.67, 770,159.70 and 316,354.94

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Solution

The fourth proportional to 558,067.67, 770,159.70 and 316,354.94 is: 436,584.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,067.67 : 770,159.70 = 316,354.94 : x
  2. Step 2: Convert to fraction form
    558,067.67/770,159.70 = 316,354.94/x
  3. Step 3: Cross multiply
    558,067.67x = 770,159.70 × 316,354.94
  4. Step 4: Simplify right side
    558,067.67x = 243,643,821,833.12
  5. Step 5: Solve for x
    x = 243,643,821,833.12/558,067.67
  6. Step 6: Final answer
    x = 436,584.73

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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.