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Finding the Fourth Proportional to 481,246.32, 721,620.54 and 211,263.96

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Solution

The fourth proportional to 481,246.32, 721,620.54 and 211,263.96 is: 316,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,246.32 : 721,620.54 = 211,263.96 : x
  2. Step 2: Convert to fraction form
    481,246.32/721,620.54 = 211,263.96/x
  3. Step 3: Cross multiply
    481,246.32x = 721,620.54 × 211,263.96
  4. Step 4: Simplify right side
    481,246.32x = 152,452,412,897.74
  5. Step 5: Solve for x
    x = 152,452,412,897.74/481,246.32
  6. Step 6: Final answer
    x = 316,786.66

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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.