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Finding the Fourth Proportional to 618,315.26, 927,560.96 and 191,887.93

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Solution

The fourth proportional to 618,315.26, 927,560.96 and 191,887.93 is: 287,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,315.26 : 927,560.96 = 191,887.93 : x
  2. Step 2: Convert to fraction form
    618,315.26/927,560.96 = 191,887.93/x
  3. Step 3: Cross multiply
    618,315.26x = 927,560.96 × 191,887.93
  4. Step 4: Simplify right side
    618,315.26x = 177,987,746,965.97
  5. Step 5: Solve for x
    x = 177,987,746,965.97/618,315.26
  6. Step 6: Final answer
    x = 287,859.22

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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.