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Finding the Fourth Proportional to 352,432.73, 486,344.17 and 191,284.32

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Solution

The fourth proportional to 352,432.73, 486,344.17 and 191,284.32 is: 263,965.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,432.73 : 486,344.17 = 191,284.32 : x
  2. Step 2: Convert to fraction form
    352,432.73/486,344.17 = 191,284.32/x
  3. Step 3: Cross multiply
    352,432.73x = 486,344.17 × 191,284.32
  4. Step 4: Simplify right side
    352,432.73x = 93,030,015,907.31
  5. Step 5: Solve for x
    x = 93,030,015,907.31/352,432.73
  6. Step 6: Final answer
    x = 263,965.31

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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.