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Finding the Fourth Proportional to 891,863, 1,230,764.68 and 483,954.46

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Solution

The fourth proportional to 891,863, 1,230,764.68 and 483,954.46 is: 667,853.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,863 : 1,230,764.68 = 483,954.46 : x
  2. Step 2: Convert to fraction form
    891,863/1,230,764.68 = 483,954.46/x
  3. Step 3: Cross multiply
    891,863x = 1,230,764.68 × 483,954.46
  4. Step 4: Simplify right side
    891,863x = 595,634,056,096.47
  5. Step 5: Solve for x
    x = 595,634,056,096.47/891,863
  6. Step 6: Final answer
    x = 667,853.76

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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.