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Finding the Fourth Proportional to 558,682.50, 770,999.36 and 316,975.26

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Solution

The fourth proportional to 558,682.50, 770,999.36 and 316,975.26 is: 437,435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,682.50 : 770,999.36 = 316,975.26 : x
  2. Step 2: Convert to fraction form
    558,682.50/770,999.36 = 316,975.26/x
  3. Step 3: Cross multiply
    558,682.50x = 770,999.36 × 316,975.26
  4. Step 4: Simplify right side
    558,682.50x = 244,387,722,595.83
  5. Step 5: Solve for x
    x = 244,387,722,595.83/558,682.50
  6. Step 6: Final answer
    x = 437,435.79

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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.