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Finding the Fourth Proportional to 489,529.71, 734,505.03 and 265,050.54

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Solution

The fourth proportional to 489,529.71, 734,505.03 and 265,050.54 is: 397,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,529.71 : 734,505.03 = 265,050.54 : x
  2. Step 2: Convert to fraction form
    489,529.71/734,505.03 = 265,050.54/x
  3. Step 3: Cross multiply
    489,529.71x = 734,505.03 × 265,050.54
  4. Step 4: Simplify right side
    489,529.71x = 194,680,954,834.22
  5. Step 5: Solve for x
    x = 194,680,954,834.22/489,529.71
  6. Step 6: Final answer
    x = 397,689.76

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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.