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Finding the Fourth Proportional to 489,346.40, 733,846.80 and 173,813.60

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Solution

The fourth proportional to 489,346.40, 733,846.80 and 173,813.60 is: 260,659.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,346.40 : 733,846.80 = 173,813.60 : x
  2. Step 2: Convert to fraction form
    489,346.40/733,846.80 = 173,813.60/x
  3. Step 3: Cross multiply
    489,346.40x = 733,846.80 × 173,813.60
  4. Step 4: Simplify right side
    489,346.40x = 127,552,554,156.48
  5. Step 5: Solve for x
    x = 127,552,554,156.48/489,346.40
  6. Step 6: Final answer
    x = 260,659.02

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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.