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Finding the Fourth Proportional to 344,642.21, 475,574.87 and 199,422.89

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Solution

The fourth proportional to 344,642.21, 475,574.87 and 199,422.89 is: 275,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,642.21 : 475,574.87 = 199,422.89 : x
  2. Step 2: Convert to fraction form
    344,642.21/475,574.87 = 199,422.89/x
  3. Step 3: Cross multiply
    344,642.21x = 475,574.87 × 199,422.89
  4. Step 4: Simplify right side
    344,642.21x = 94,840,514,986.77
  5. Step 5: Solve for x
    x = 94,840,514,986.77/344,642.21
  6. Step 6: Final answer
    x = 275,185.43

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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.