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Finding the Fourth Proportional to 536,585.55, 804,586.72 and 221,074.35

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Solution

The fourth proportional to 536,585.55, 804,586.72 and 221,074.35 is: 331,491.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,585.55 : 804,586.72 = 221,074.35 : x
  2. Step 2: Convert to fraction form
    536,585.55/804,586.72 = 221,074.35/x
  3. Step 3: Cross multiply
    536,585.55x = 804,586.72 × 221,074.35
  4. Step 4: Simplify right side
    536,585.55x = 177,873,486,142.63
  5. Step 5: Solve for x
    x = 177,873,486,142.63/536,585.55
  6. Step 6: Final answer
    x = 331,491.38

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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.