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Finding the Fourth Proportional to 618,689.60, 927,285.60 and 262,956.80

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Solution

The fourth proportional to 618,689.60, 927,285.60 and 262,956.80 is: 394,116.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,689.60 : 927,285.60 = 262,956.80 : x
  2. Step 2: Convert to fraction form
    618,689.60/927,285.60 = 262,956.80/x
  3. Step 3: Cross multiply
    618,689.60x = 927,285.60 × 262,956.80
  4. Step 4: Simplify right side
    618,689.60x = 243,836,054,062.08
  5. Step 5: Solve for x
    x = 243,836,054,062.08/618,689.60
  6. Step 6: Final answer
    x = 394,116.94

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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.