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Finding the Fourth Proportional to 354,969.27, 489,877.47 and 193,839.30

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Solution

The fourth proportional to 354,969.27, 489,877.47 and 193,839.30 is: 267,509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,969.27 : 489,877.47 = 193,839.30 : x
  2. Step 2: Convert to fraction form
    354,969.27/489,877.47 = 193,839.30/x
  3. Step 3: Cross multiply
    354,969.27x = 489,877.47 × 193,839.30
  4. Step 4: Simplify right side
    354,969.27x = 94,957,505,870.57
  5. Step 5: Solve for x
    x = 94,957,505,870.57/354,969.27
  6. Step 6: Final answer
    x = 267,509.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.