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Finding the Fourth Proportional to 360,418.39, 497,364.82 and 197,078.70

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Solution

The fourth proportional to 360,418.39, 497,364.82 and 197,078.70 is: 271,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,418.39 : 497,364.82 = 197,078.70 : x
  2. Step 2: Convert to fraction form
    360,418.39/497,364.82 = 197,078.70/x
  3. Step 3: Cross multiply
    360,418.39x = 497,364.82 × 197,078.70
  4. Step 4: Simplify right side
    360,418.39x = 98,020,013,523.76
  5. Step 5: Solve for x
    x = 98,020,013,523.76/360,418.39
  6. Step 6: Final answer
    x = 271,961.74

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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.