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Finding the Fourth Proportional to 618,450.80, 927,676.20 and 197,740.40

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Solution

The fourth proportional to 618,450.80, 927,676.20 and 197,740.40 is: 296,610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,450.80 : 927,676.20 = 197,740.40 : x
  2. Step 2: Convert to fraction form
    618,450.80/927,676.20 = 197,740.40/x
  3. Step 3: Cross multiply
    618,450.80x = 927,676.20 × 197,740.40
  4. Step 4: Simplify right side
    618,450.80x = 183,439,062,858.48
  5. Step 5: Solve for x
    x = 183,439,062,858.48/618,450.80
  6. Step 6: Final answer
    x = 296,610.60

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Similar ratio
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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.