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Finding the Fourth Proportional to 618,790.15, 928,185.95 and 169,514.88

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Solution

The fourth proportional to 618,790.15, 928,185.95 and 169,514.88 is: 254,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,790.15 : 928,185.95 = 169,514.88 : x
  2. Step 2: Convert to fraction form
    618,790.15/928,185.95 = 169,514.88/x
  3. Step 3: Cross multiply
    618,790.15x = 928,185.95 × 169,514.88
  4. Step 4: Simplify right side
    618,790.15x = 157,341,326,875.03
  5. Step 5: Solve for x
    x = 157,341,326,875.03/618,790.15
  6. Step 6: Final answer
    x = 254,272.51

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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.