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Finding the Fourth Proportional to 536,624.56, 805,305.91 and 221,081.46

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Solution

The fourth proportional to 536,624.56, 805,305.91 and 221,081.46 is: 331,774.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,624.56 : 805,305.91 = 221,081.46 : x
  2. Step 2: Convert to fraction form
    536,624.56/805,305.91 = 221,081.46/x
  3. Step 3: Cross multiply
    536,624.56x = 805,305.91 × 221,081.46
  4. Step 4: Simplify right side
    536,624.56x = 178,038,206,329.43
  5. Step 5: Solve for x
    x = 178,038,206,329.43/536,624.56
  6. Step 6: Final answer
    x = 331,774.24

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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.