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Finding the Fourth Proportional to 384,687.68, 530,941.37 and 223,551.54

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Solution

The fourth proportional to 384,687.68, 530,941.37 and 223,551.54 is: 308,543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,687.68 : 530,941.37 = 223,551.54 : x
  2. Step 2: Convert to fraction form
    384,687.68/530,941.37 = 223,551.54/x
  3. Step 3: Cross multiply
    384,687.68x = 530,941.37 × 223,551.54
  4. Step 4: Simplify right side
    384,687.68x = 118,692,759,795.45
  5. Step 5: Solve for x
    x = 118,692,759,795.45/384,687.68
  6. Step 6: Final answer
    x = 308,543.18

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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.