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Finding the Fourth Proportional to 532,827.40, 798,204.30 and 321,838.60

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Solution

The fourth proportional to 532,827.40, 798,204.30 and 321,838.60 is: 482,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,827.40 : 798,204.30 = 321,838.60 : x
  2. Step 2: Convert to fraction form
    532,827.40/798,204.30 = 321,838.60/x
  3. Step 3: Cross multiply
    532,827.40x = 798,204.30 × 321,838.60
  4. Step 4: Simplify right side
    532,827.40x = 256,892,954,425.98
  5. Step 5: Solve for x
    x = 256,892,954,425.98/532,827.40
  6. Step 6: Final answer
    x = 482,131.65

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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.