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Finding the Fourth Proportional to 352,511.20, 486,465.78 and 191,366.20

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Solution

The fourth proportional to 352,511.20, 486,465.78 and 191,366.20 is: 264,085.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,511.20 : 486,465.78 = 191,366.20 : x
  2. Step 2: Convert to fraction form
    352,511.20/486,465.78 = 191,366.20/x
  3. Step 3: Cross multiply
    352,511.20x = 486,465.78 × 191,366.20
  4. Step 4: Simplify right side
    352,511.20x = 93,093,107,748.64
  5. Step 5: Solve for x
    x = 93,093,107,748.64/352,511.20
  6. Step 6: Final answer
    x = 264,085.53

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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.