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Finding the Fourth Proportional to 354,085.47, 488,638.04 and 192,940.56

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Solution

The fourth proportional to 354,085.47, 488,638.04 and 192,940.56 is: 266,258.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,085.47 : 488,638.04 = 192,940.56 : x
  2. Step 2: Convert to fraction form
    354,085.47/488,638.04 = 192,940.56/x
  3. Step 3: Cross multiply
    354,085.47x = 488,638.04 × 192,940.56
  4. Step 4: Simplify right side
    354,085.47x = 94,278,096,110.20
  5. Step 5: Solve for x
    x = 94,278,096,110.20/354,085.47
  6. Step 6: Final answer
    x = 266,258.02

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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.