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Finding the Fourth Proportional to 591,211.60, 886,598.70 and 191,865.40

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Solution

The fourth proportional to 591,211.60, 886,598.70 and 191,865.40 is: 287,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,211.60 : 886,598.70 = 191,865.40 : x
  2. Step 2: Convert to fraction form
    591,211.60/886,598.70 = 191,865.40/x
  3. Step 3: Cross multiply
    591,211.60x = 886,598.70 × 191,865.40
  4. Step 4: Simplify right side
    591,211.60x = 170,107,614,214.98
  5. Step 5: Solve for x
    x = 170,107,614,214.98/591,211.60
  6. Step 6: Final answer
    x = 287,727.13

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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.