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Finding the Fourth Proportional to 408,015.33, 562,899.94 and 235,901.80

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Solution

The fourth proportional to 408,015.33, 562,899.94 and 235,901.80 is: 325,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,015.33 : 562,899.94 = 235,901.80 : x
  2. Step 2: Convert to fraction form
    408,015.33/562,899.94 = 235,901.80/x
  3. Step 3: Cross multiply
    408,015.33x = 562,899.94 × 235,901.80
  4. Step 4: Simplify right side
    408,015.33x = 132,789,109,065.89
  5. Step 5: Solve for x
    x = 132,789,109,065.89/408,015.33
  6. Step 6: Final answer
    x = 325,451.27

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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.