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Finding the Fourth Proportional to 489,528.42, 734,512.98 and 264,625.56

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Solution

The fourth proportional to 489,528.42, 734,512.98 and 264,625.56 is: 397,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,528.42 : 734,512.98 = 264,625.56 : x
  2. Step 2: Convert to fraction form
    489,528.42/734,512.98 = 264,625.56/x
  3. Step 3: Cross multiply
    489,528.42x = 734,512.98 × 264,625.56
  4. Step 4: Simplify right side
    489,528.42x = 194,370,908,659.77
  5. Step 5: Solve for x
    x = 194,370,908,659.77/489,528.42
  6. Step 6: Final answer
    x = 397,057.46

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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.