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Finding the Fourth Proportional to 522,690.13, 783,346.29 and 206,974.81

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Solution

The fourth proportional to 522,690.13, 783,346.29 and 206,974.81 is: 310,189.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,690.13 : 783,346.29 = 206,974.81 : x
  2. Step 2: Convert to fraction form
    522,690.13/783,346.29 = 206,974.81/x
  3. Step 3: Cross multiply
    522,690.13x = 783,346.29 × 206,974.81
  4. Step 4: Simplify right side
    522,690.13x = 162,132,949,536.96
  5. Step 5: Solve for x
    x = 162,132,949,536.96/522,690.13
  6. Step 6: Final answer
    x = 310,189.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.