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Finding the Fourth Proportional to 618,364, 927,205.20 and 191,781.76

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Solution

The fourth proportional to 618,364, 927,205.20 and 191,781.76 is: 287,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,364 : 927,205.20 = 191,781.76 : x
  2. Step 2: Convert to fraction form
    618,364/927,205.20 = 191,781.76/x
  3. Step 3: Cross multiply
    618,364x = 927,205.20 × 191,781.76
  4. Step 4: Simplify right side
    618,364x = 177,821,045,137.15
  5. Step 5: Solve for x
    x = 177,821,045,137.15/618,364
  6. Step 6: Final answer
    x = 287,566.94

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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.