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Finding the Fourth Proportional to 573,715.88, 791,667.30 and 319,025.96

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Solution

The fourth proportional to 573,715.88, 791,667.30 and 319,025.96 is: 440,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,715.88 : 791,667.30 = 319,025.96 : x
  2. Step 2: Convert to fraction form
    573,715.88/791,667.30 = 319,025.96/x
  3. Step 3: Cross multiply
    573,715.88x = 791,667.30 × 319,025.96
  4. Step 4: Simplify right side
    573,715.88x = 252,562,420,383.11
  5. Step 5: Solve for x
    x = 252,562,420,383.11/573,715.88
  6. Step 6: Final answer
    x = 440,222.12

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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.