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Finding the Fourth Proportional to 606,969.60, 910,860.72 and 251,983.92

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Solution

The fourth proportional to 606,969.60, 910,860.72 and 251,983.92 is: 378,144.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,969.60 : 910,860.72 = 251,983.92 : x
  2. Step 2: Convert to fraction form
    606,969.60/910,860.72 = 251,983.92/x
  3. Step 3: Cross multiply
    606,969.60x = 910,860.72 × 251,983.92
  4. Step 4: Simplify right side
    606,969.60x = 229,522,254,799.62
  5. Step 5: Solve for x
    x = 229,522,254,799.62/606,969.60
  6. Step 6: Final answer
    x = 378,144.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.