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Finding the Fourth Proportional to 354,957.55, 489,861.26 and 193,827.55

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Solution

The fourth proportional to 354,957.55, 489,861.26 and 193,827.55 is: 267,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,957.55 : 489,861.26 = 193,827.55 : x
  2. Step 2: Convert to fraction form
    354,957.55/489,861.26 = 193,827.55/x
  3. Step 3: Cross multiply
    354,957.55x = 489,861.26 × 193,827.55
  4. Step 4: Simplify right side
    354,957.55x = 94,948,607,865.71
  5. Step 5: Solve for x
    x = 94,948,607,865.71/354,957.55
  6. Step 6: Final answer
    x = 267,492.85

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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.