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Finding the Fourth Proportional to 800,118.69, 1,104,163.74 and 437,542.80

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Solution

The fourth proportional to 800,118.69, 1,104,163.74 and 437,542.80 is: 603,809.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,118.69 : 1,104,163.74 = 437,542.80 : x
  2. Step 2: Convert to fraction form
    800,118.69/1,104,163.74 = 437,542.80/x
  3. Step 3: Cross multiply
    800,118.69x = 1,104,163.74 × 437,542.80
  4. Step 4: Simplify right side
    800,118.69x = 483,118,894,458.07
  5. Step 5: Solve for x
    x = 483,118,894,458.07/800,118.69
  6. Step 6: Final answer
    x = 603,809.04

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Double scale
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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.