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Finding the Fourth Proportional to 489,219.15, 733,828.73 and 489,219.15

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Solution

The fourth proportional to 489,219.15, 733,828.73 and 489,219.15 is: 733,828.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,219.15 : 733,828.73 = 489,219.15 : x
  2. Step 2: Convert to fraction form
    489,219.15/733,828.73 = 489,219.15/x
  3. Step 3: Cross multiply
    489,219.15x = 733,828.73 × 489,219.15
  4. Step 4: Simplify right side
    489,219.15x = 359,003,065,090.08
  5. Step 5: Solve for x
    x = 359,003,065,090.08/489,219.15
  6. Step 6: Final answer
    x = 733,828.73

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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.