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Finding the Fourth Proportional to 354,803.40, 489,610.71 and 193,657.14

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Solution

The fourth proportional to 354,803.40, 489,610.71 and 193,657.14 is: 267,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,803.40 : 489,610.71 = 193,657.14 : x
  2. Step 2: Convert to fraction form
    354,803.40/489,610.71 = 193,657.14/x
  3. Step 3: Cross multiply
    354,803.40x = 489,610.71 × 193,657.14
  4. Step 4: Simplify right side
    354,803.40x = 94,816,609,811.97
  5. Step 5: Solve for x
    x = 94,816,609,811.97/354,803.40
  6. Step 6: Final answer
    x = 267,237.04

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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.