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Finding the Fourth Proportional to 354,326.67, 488,848.76 and 246,857.49

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Solution

The fourth proportional to 354,326.67, 488,848.76 and 246,857.49 is: 340,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,326.67 : 488,848.76 = 246,857.49 : x
  2. Step 2: Convert to fraction form
    354,326.67/488,848.76 = 246,857.49/x
  3. Step 3: Cross multiply
    354,326.67x = 488,848.76 × 246,857.49
  4. Step 4: Simplify right side
    354,326.67x = 120,675,976,648.93
  5. Step 5: Solve for x
    x = 120,675,976,648.93/354,326.67
  6. Step 6: Final answer
    x = 340,578.30

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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.