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Finding the Fourth Proportional to 421,591.73, 581,633.15 and 268,602.52

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Solution

The fourth proportional to 421,591.73, 581,633.15 and 268,602.52 is: 370,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,591.73 : 581,633.15 = 268,602.52 : x
  2. Step 2: Convert to fraction form
    421,591.73/581,633.15 = 268,602.52/x
  3. Step 3: Cross multiply
    421,591.73x = 581,633.15 × 268,602.52
  4. Step 4: Simplify right side
    421,591.73x = 156,228,129,022.96
  5. Step 5: Solve for x
    x = 156,228,129,022.96/421,591.73
  6. Step 6: Final answer
    x = 370,567.35

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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.