Home / 526,819.37-727,012.49-285,101.80

Finding the Fourth Proportional to 526,819.37, 727,012.49 and 285,101.80

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Solution

The fourth proportional to 526,819.37, 727,012.49 and 285,101.80 is: 393,441.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,819.37 : 727,012.49 = 285,101.80 : x
  2. Step 2: Convert to fraction form
    526,819.37/727,012.49 = 285,101.80/x
  3. Step 3: Cross multiply
    526,819.37x = 727,012.49 × 285,101.80
  4. Step 4: Simplify right side
    526,819.37x = 207,272,566,278.44
  5. Step 5: Solve for x
    x = 207,272,566,278.44/526,819.37
  6. Step 6: Final answer
    x = 393,441.43

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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.