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Finding the Fourth Proportional to 353,646.90, 488,043.72 and 192,512.68

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Solution

The fourth proportional to 353,646.90, 488,043.72 and 192,512.68 is: 265,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,646.90 : 488,043.72 = 192,512.68 : x
  2. Step 2: Convert to fraction form
    353,646.90/488,043.72 = 192,512.68/x
  3. Step 3: Cross multiply
    353,646.90x = 488,043.72 × 192,512.68
  4. Step 4: Simplify right side
    353,646.90x = 93,954,603,274.26
  5. Step 5: Solve for x
    x = 93,954,603,274.26/353,646.90
  6. Step 6: Final answer
    x = 265,673.48

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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.