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Finding the Fourth Proportional to 354,737.47, 489,548.09 and 193,602.86

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Solution

The fourth proportional to 354,737.47, 489,548.09 and 193,602.86 is: 267,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,737.47 : 489,548.09 = 193,602.86 : x
  2. Step 2: Convert to fraction form
    354,737.47/489,548.09 = 193,602.86/x
  3. Step 3: Cross multiply
    354,737.47x = 489,548.09 × 193,602.86
  4. Step 4: Simplify right side
    354,737.47x = 94,777,906,915.78
  5. Step 5: Solve for x
    x = 94,777,906,915.78/354,737.47
  6. Step 6: Final answer
    x = 267,177.60

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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.