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Finding the Fourth Proportional to 578,194.20, 868,284 and 354,866.04

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Solution

The fourth proportional to 578,194.20, 868,284 and 354,866.04 is: 532,908.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,194.20 : 868,284 = 354,866.04 : x
  2. Step 2: Convert to fraction form
    578,194.20/868,284 = 354,866.04/x
  3. Step 3: Cross multiply
    578,194.20x = 868,284 × 354,866.04
  4. Step 4: Simplify right side
    578,194.20x = 308,124,504,675.36
  5. Step 5: Solve for x
    x = 308,124,504,675.36/578,194.20
  6. Step 6: Final answer
    x = 532,908.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.