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Finding the Fourth Proportional to 489,578.95, 734,442.54 and 173,960.83

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Solution

The fourth proportional to 489,578.95, 734,442.54 and 173,960.83 is: 260,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,578.95 : 734,442.54 = 173,960.83 : x
  2. Step 2: Convert to fraction form
    489,578.95/734,442.54 = 173,960.83/x
  3. Step 3: Cross multiply
    489,578.95x = 734,442.54 × 173,960.83
  4. Step 4: Simplify right side
    489,578.95x = 127,764,233,845.71
  5. Step 5: Solve for x
    x = 127,764,233,845.71/489,578.95
  6. Step 6: Final answer
    x = 260,967.58

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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.