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Finding the Fourth Proportional to 354,707.69, 489,506.96 and 193,573.12

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Solution

The fourth proportional to 354,707.69, 489,506.96 and 193,573.12 is: 267,136.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,707.69 : 489,506.96 = 193,573.12 : x
  2. Step 2: Convert to fraction form
    354,707.69/489,506.96 = 193,573.12/x
  3. Step 3: Cross multiply
    354,707.69x = 489,506.96 × 193,573.12
  4. Step 4: Simplify right side
    354,707.69x = 94,755,389,508.92
  5. Step 5: Solve for x
    x = 94,755,389,508.92/354,707.69
  6. Step 6: Final answer
    x = 267,136.55

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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.