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Finding the Fourth Proportional to 777,892.50, 1,166,838.78 and 186,916.50

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Solution

The fourth proportional to 777,892.50, 1,166,838.78 and 186,916.50 is: 280,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,892.50 : 1,166,838.78 = 186,916.50 : x
  2. Step 2: Convert to fraction form
    777,892.50/1,166,838.78 = 186,916.50/x
  3. Step 3: Cross multiply
    777,892.50x = 1,166,838.78 × 186,916.50
  4. Step 4: Simplify right side
    777,892.50x = 218,101,420,821.87
  5. Step 5: Solve for x
    x = 218,101,420,821.87/777,892.50
  6. Step 6: Final answer
    x = 280,374.76

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Similar ratio
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1.5x scale

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.