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Finding the Fourth Proportional to 352,513.38, 486,478.44 and 191,378.94

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Solution

The fourth proportional to 352,513.38, 486,478.44 and 191,378.94 is: 264,108.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,513.38 : 486,478.44 = 191,378.94 : x
  2. Step 2: Convert to fraction form
    352,513.38/486,478.44 = 191,378.94/x
  3. Step 3: Cross multiply
    352,513.38x = 486,478.44 × 191,378.94
  4. Step 4: Simplify right side
    352,513.38x = 93,101,726,355.76
  5. Step 5: Solve for x
    x = 93,101,726,355.76/352,513.38
  6. Step 6: Final answer
    x = 264,108.34

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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.