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Finding the Fourth Proportional to 618,514.38, 927,478.35 and 239,612.58

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Solution

The fourth proportional to 618,514.38, 927,478.35 and 239,612.58 is: 359,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,514.38 : 927,478.35 = 239,612.58 : x
  2. Step 2: Convert to fraction form
    618,514.38/927,478.35 = 239,612.58/x
  3. Step 3: Cross multiply
    618,514.38x = 927,478.35 × 239,612.58
  4. Step 4: Simplify right side
    618,514.38x = 222,235,480,337.64
  5. Step 5: Solve for x
    x = 222,235,480,337.64/618,514.38
  6. Step 6: Final answer
    x = 359,305.28

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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.