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Finding the Fourth Proportional to 591,391.60, 886,868.70 and 192,045.40

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Solution

The fourth proportional to 591,391.60, 886,868.70 and 192,045.40 is: 287,997.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,391.60 : 886,868.70 = 192,045.40 : x
  2. Step 2: Convert to fraction form
    591,391.60/886,868.70 = 192,045.40/x
  3. Step 3: Cross multiply
    591,391.60x = 886,868.70 × 192,045.40
  4. Step 4: Simplify right side
    591,391.60x = 170,319,054,238.98
  5. Step 5: Solve for x
    x = 170,319,054,238.98/591,391.60
  6. Step 6: Final answer
    x = 287,997.08

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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.