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Finding the Fourth Proportional to 447,889.88, 618,131.58 and 334,515.80

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Solution

The fourth proportional to 447,889.88, 618,131.58 and 334,515.80 is: 461,664.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,889.88 : 618,131.58 = 334,515.80 : x
  2. Step 2: Convert to fraction form
    447,889.88/618,131.58 = 334,515.80/x
  3. Step 3: Cross multiply
    447,889.88x = 618,131.58 × 334,515.80
  4. Step 4: Simplify right side
    447,889.88x = 206,774,779,988.96
  5. Step 5: Solve for x
    x = 206,774,779,988.96/447,889.88
  6. Step 6: Final answer
    x = 461,664.33

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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.