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Finding the Fourth Proportional to 351,468.90, 485,026.18 and 190,323.94

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Solution

The fourth proportional to 351,468.90, 485,026.18 and 190,323.94 is: 262,646.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,468.90 : 485,026.18 = 190,323.94 : x
  2. Step 2: Convert to fraction form
    351,468.90/485,026.18 = 190,323.94/x
  3. Step 3: Cross multiply
    351,468.90x = 485,026.18 × 190,323.94
  4. Step 4: Simplify right side
    351,468.90x = 92,312,093,580.75
  5. Step 5: Solve for x
    x = 92,312,093,580.75/351,468.90
  6. Step 6: Final answer
    x = 262,646.55

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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.