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Finding the Fourth Proportional to 618,790.91, 928,187.08 and 169,515.63

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Solution

The fourth proportional to 618,790.91, 928,187.08 and 169,515.63 is: 254,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,790.91 : 928,187.08 = 169,515.63 : x
  2. Step 2: Convert to fraction form
    618,790.91/928,187.08 = 169,515.63/x
  3. Step 3: Cross multiply
    618,790.91x = 928,187.08 × 169,515.63
  4. Step 4: Simplify right side
    618,790.91x = 157,342,217,200.27
  5. Step 5: Solve for x
    x = 157,342,217,200.27/618,790.91
  6. Step 6: Final answer
    x = 254,273.64

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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.