Home / 558,180.75-770,508.53-395,686.57

Finding the Fourth Proportional to 558,180.75, 770,508.53 and 395,686.57

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Solution

The fourth proportional to 558,180.75, 770,508.53 and 395,686.57 is: 546,202.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,180.75 : 770,508.53 = 395,686.57 : x
  2. Step 2: Convert to fraction form
    558,180.75/770,508.53 = 395,686.57/x
  3. Step 3: Cross multiply
    558,180.75x = 770,508.53 × 395,686.57
  4. Step 4: Simplify right side
    558,180.75x = 304,879,877,391.44
  5. Step 5: Solve for x
    x = 304,879,877,391.44/558,180.75
  6. Step 6: Final answer
    x = 546,202.78

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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.