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Finding the Fourth Proportional to 545,951.22, 753,131.97 and 354,894.90

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Solution

The fourth proportional to 545,951.22, 753,131.97 and 354,894.90 is: 489,572.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,951.22 : 753,131.97 = 354,894.90 : x
  2. Step 2: Convert to fraction form
    545,951.22/753,131.97 = 354,894.90/x
  3. Step 3: Cross multiply
    545,951.22x = 753,131.97 × 354,894.90
  4. Step 4: Simplify right side
    545,951.22x = 267,282,695,179.95
  5. Step 5: Solve for x
    x = 267,282,695,179.95/545,951.22
  6. Step 6: Final answer
    x = 489,572.48

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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.