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Finding the Fourth Proportional to 580,938.75, 801,690.48 and 319,297.41

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Solution

The fourth proportional to 580,938.75, 801,690.48 and 319,297.41 is: 440,627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,938.75 : 801,690.48 = 319,297.41 : x
  2. Step 2: Convert to fraction form
    580,938.75/801,690.48 = 319,297.41/x
  3. Step 3: Cross multiply
    580,938.75x = 801,690.48 × 319,297.41
  4. Step 4: Simplify right side
    580,938.75x = 255,977,693,885.66
  5. Step 5: Solve for x
    x = 255,977,693,885.66/580,938.75
  6. Step 6: Final answer
    x = 440,627.68

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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.