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Finding the Fourth Proportional to 618,177.40, 927,266.10 and 191,712.40

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Solution

The fourth proportional to 618,177.40, 927,266.10 and 191,712.40 is: 287,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,177.40 : 927,266.10 = 191,712.40 : x
  2. Step 2: Convert to fraction form
    618,177.40/927,266.10 = 191,712.40/x
  3. Step 3: Cross multiply
    618,177.40x = 927,266.10 × 191,712.40
  4. Step 4: Simplify right side
    618,177.40x = 177,768,409,469.64
  5. Step 5: Solve for x
    x = 177,768,409,469.64/618,177.40
  6. Step 6: Final answer
    x = 287,568.60

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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.