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Finding the Fourth Proportional to 613,251.48, 846,224.10 and 355,212.18

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Solution

The fourth proportional to 613,251.48, 846,224.10 and 355,212.18 is: 490,156.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,251.48 : 846,224.10 = 355,212.18 : x
  2. Step 2: Convert to fraction form
    613,251.48/846,224.10 = 355,212.18/x
  3. Step 3: Cross multiply
    613,251.48x = 846,224.10 × 355,212.18
  4. Step 4: Simplify right side
    613,251.48x = 300,589,107,329.54
  5. Step 5: Solve for x
    x = 300,589,107,329.54/613,251.48
  6. Step 6: Final answer
    x = 490,156.35

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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.