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Finding the Fourth Proportional to 491,169.55, 677,448.61 and 433,707.49

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Solution

The fourth proportional to 491,169.55, 677,448.61 and 433,707.49 is: 598,193.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,169.55 : 677,448.61 = 433,707.49 : x
  2. Step 2: Convert to fraction form
    491,169.55/677,448.61 = 433,707.49/x
  3. Step 3: Cross multiply
    491,169.55x = 677,448.61 × 433,707.49
  4. Step 4: Simplify right side
    491,169.55x = 293,814,536,247.09
  5. Step 5: Solve for x
    x = 293,814,536,247.09/491,169.55
  6. Step 6: Final answer
    x = 598,193.71

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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.