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Finding the Fourth Proportional to 605,993.81, 836,269.31 and 351,490.19

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Solution

The fourth proportional to 605,993.81, 836,269.31 and 351,490.19 is: 485,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,993.81 : 836,269.31 = 351,490.19 : x
  2. Step 2: Convert to fraction form
    605,993.81/836,269.31 = 351,490.19/x
  3. Step 3: Cross multiply
    605,993.81x = 836,269.31 × 351,490.19
  4. Step 4: Simplify right side
    605,993.81x = 293,940,455,360.45
  5. Step 5: Solve for x
    x = 293,940,455,360.45/605,993.81
  6. Step 6: Final answer
    x = 485,055.21

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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.