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Finding the Fourth Proportional to 519,850.09, 717,385.22 and 290,410.67

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Solution

The fourth proportional to 519,850.09, 717,385.22 and 290,410.67 is: 400,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,850.09 : 717,385.22 = 290,410.67 : x
  2. Step 2: Convert to fraction form
    519,850.09/717,385.22 = 290,410.67/x
  3. Step 3: Cross multiply
    519,850.09x = 717,385.22 × 290,410.67
  4. Step 4: Simplify right side
    519,850.09x = 208,336,323,218.31
  5. Step 5: Solve for x
    x = 208,336,323,218.31/519,850.09
  6. Step 6: Final answer
    x = 400,762.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.