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Finding the Fourth Proportional to 558,500.62, 770,698.27 and 313,462.61

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Solution

The fourth proportional to 558,500.62, 770,698.27 and 313,462.61 is: 432,560.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,500.62 : 770,698.27 = 313,462.61 : x
  2. Step 2: Convert to fraction form
    558,500.62/770,698.27 = 313,462.61/x
  3. Step 3: Cross multiply
    558,500.62x = 770,698.27 × 313,462.61
  4. Step 4: Simplify right side
    558,500.62x = 241,585,089,783.53
  5. Step 5: Solve for x
    x = 241,585,089,783.53/558,500.62
  6. Step 6: Final answer
    x = 432,560.11

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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.