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Finding the Fourth Proportional to 528,959.21, 793,270.30 and 173,891.39

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Solution

The fourth proportional to 528,959.21, 793,270.30 and 173,891.39 is: 260,781.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,959.21 : 793,270.30 = 173,891.39 : x
  2. Step 2: Convert to fraction form
    528,959.21/793,270.30 = 173,891.39/x
  3. Step 3: Cross multiply
    528,959.21x = 793,270.30 × 173,891.39
  4. Step 4: Simplify right side
    528,959.21x = 137,942,870,711.64
  5. Step 5: Solve for x
    x = 137,942,870,711.64/528,959.21
  6. Step 6: Final answer
    x = 260,781.68

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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.