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Finding the Fourth Proportional to 532,955.40, 798,396.30 and 321,966.60

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Solution

The fourth proportional to 532,955.40, 798,396.30 and 321,966.60 is: 482,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,955.40 : 798,396.30 = 321,966.60 : x
  2. Step 2: Convert to fraction form
    532,955.40/798,396.30 = 321,966.60/x
  3. Step 3: Cross multiply
    532,955.40x = 798,396.30 × 321,966.60
  4. Step 4: Simplify right side
    532,955.40x = 257,056,942,163.58
  5. Step 5: Solve for x
    x = 257,056,942,163.58/532,955.40
  6. Step 6: Final answer
    x = 482,323.55

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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.