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Finding the Fourth Proportional to 606,981.60, 910,836.90 and 251,958.60

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Solution

The fourth proportional to 606,981.60, 910,836.90 and 251,958.60 is: 378,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,981.60 : 910,836.90 = 251,958.60 : x
  2. Step 2: Convert to fraction form
    606,981.60/910,836.90 = 251,958.60/x
  3. Step 3: Cross multiply
    606,981.60x = 910,836.90 × 251,958.60
  4. Step 4: Simplify right side
    606,981.60x = 229,493,190,152.34
  5. Step 5: Solve for x
    x = 229,493,190,152.34/606,981.60
  6. Step 6: Final answer
    x = 378,089.20

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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.