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Finding the Fourth Proportional to 892,958.78, 1,339,622.68 and 293,955.88

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Solution

The fourth proportional to 892,958.78, 1,339,622.68 and 293,955.88 is: 440,994.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,958.78 : 1,339,622.68 = 293,955.88 : x
  2. Step 2: Convert to fraction form
    892,958.78/1,339,622.68 = 293,955.88/x
  3. Step 3: Cross multiply
    892,958.78x = 1,339,622.68 × 293,955.88
  4. Step 4: Simplify right side
    892,958.78x = 393,789,963,767.36
  5. Step 5: Solve for x
    x = 393,789,963,767.36/892,958.78
  6. Step 6: Final answer
    x = 440,994.56

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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.