Home / 526,819.78-727,012.59-285,104.12

Finding the Fourth Proportional to 526,819.78, 727,012.59 and 285,104.12

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Solution

The fourth proportional to 526,819.78, 727,012.59 and 285,104.12 is: 393,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,819.78 : 727,012.59 = 285,104.12 : x
  2. Step 2: Convert to fraction form
    526,819.78/727,012.59 = 285,104.12/x
  3. Step 3: Cross multiply
    526,819.78x = 727,012.59 × 285,104.12
  4. Step 4: Simplify right side
    526,819.78x = 207,274,284,700.87
  5. Step 5: Solve for x
    x = 207,274,284,700.87/526,819.78
  6. Step 6: Final answer
    x = 393,444.39

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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.