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Finding the Fourth Proportional to 489,793.90, 734,518.05 and 174,261.10

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Solution

The fourth proportional to 489,793.90, 734,518.05 and 174,261.10 is: 261,330.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,793.90 : 734,518.05 = 174,261.10 : x
  2. Step 2: Convert to fraction form
    489,793.90/734,518.05 = 174,261.10/x
  3. Step 3: Cross multiply
    489,793.90x = 734,518.05 × 174,261.10
  4. Step 4: Simplify right side
    489,793.90x = 127,997,923,362.86
  5. Step 5: Solve for x
    x = 127,997,923,362.86/489,793.90
  6. Step 6: Final answer
    x = 261,330.17

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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.