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Finding the Fourth Proportional to 619,279, 929,074.62 and 176,047

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Solution

The fourth proportional to 619,279, 929,074.62 and 176,047 is: 264,114.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,279 : 929,074.62 = 176,047 : x
  2. Step 2: Convert to fraction form
    619,279/929,074.62 = 176,047/x
  3. Step 3: Cross multiply
    619,279x = 929,074.62 × 176,047
  4. Step 4: Simplify right side
    619,279x = 163,560,799,627.14
  5. Step 5: Solve for x
    x = 163,560,799,627.14/619,279
  6. Step 6: Final answer
    x = 264,114.88

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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.