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Finding the Fourth Proportional to 618,787.32, 928,181.76 and 169,512.14

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Solution

The fourth proportional to 618,787.32, 928,181.76 and 169,512.14 is: 254,268.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,787.32 : 928,181.76 = 169,512.14 : x
  2. Step 2: Convert to fraction form
    618,787.32/928,181.76 = 169,512.14/x
  3. Step 3: Cross multiply
    618,787.32x = 928,181.76 × 169,512.14
  4. Step 4: Simplify right side
    618,787.32x = 157,338,076,446.57
  5. Step 5: Solve for x
    x = 157,338,076,446.57/618,787.32
  6. Step 6: Final answer
    x = 254,268.42

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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.