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Finding the Fourth Proportional to 404,504.99, 558,216.45 and 223,216.86

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Solution

The fourth proportional to 404,504.99, 558,216.45 and 223,216.86 is: 308,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,504.99 : 558,216.45 = 223,216.86 : x
  2. Step 2: Convert to fraction form
    404,504.99/558,216.45 = 223,216.86/x
  3. Step 3: Cross multiply
    404,504.99x = 558,216.45 × 223,216.86
  4. Step 4: Simplify right side
    404,504.99x = 124,603,323,169.35
  5. Step 5: Solve for x
    x = 124,603,323,169.35/404,504.99
  6. Step 6: Final answer
    x = 308,039.03

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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.