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Finding the Fourth Proportional to 665,710.84, 998,527.38 and 192,385.72

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Solution

The fourth proportional to 665,710.84, 998,527.38 and 192,385.72 is: 288,567.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,710.84 : 998,527.38 = 192,385.72 : x
  2. Step 2: Convert to fraction form
    665,710.84/998,527.38 = 192,385.72/x
  3. Step 3: Cross multiply
    665,710.84x = 998,527.38 × 192,385.72
  4. Step 4: Simplify right side
    665,710.84x = 192,102,408,941.01
  5. Step 5: Solve for x
    x = 192,102,408,941.01/665,710.84
  6. Step 6: Final answer
    x = 288,567.34

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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.