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Finding the Fourth Proportional to 354,401.79, 489,086.28 and 193,265.66

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Solution

The fourth proportional to 354,401.79, 489,086.28 and 193,265.66 is: 266,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,401.79 : 489,086.28 = 193,265.66 : x
  2. Step 2: Convert to fraction form
    354,401.79/489,086.28 = 193,265.66/x
  3. Step 3: Cross multiply
    354,401.79x = 489,086.28 × 193,265.66
  4. Step 4: Simplify right side
    354,401.79x = 94,523,580,255.71
  5. Step 5: Solve for x
    x = 94,523,580,255.71/354,401.79
  6. Step 6: Final answer
    x = 266,713.04

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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.