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Finding the Fourth Proportional to 519,881.96, 717,356.21 and 293,522.60

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Solution

The fourth proportional to 519,881.96, 717,356.21 and 293,522.60 is: 405,015.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,881.96 : 717,356.21 = 293,522.60 : x
  2. Step 2: Convert to fraction form
    519,881.96/717,356.21 = 293,522.60/x
  3. Step 3: Cross multiply
    519,881.96x = 717,356.21 × 293,522.60
  4. Step 4: Simplify right side
    519,881.96x = 210,560,254,830.95
  5. Step 5: Solve for x
    x = 210,560,254,830.95/519,881.96
  6. Step 6: Final answer
    x = 405,015.51

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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.