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Finding the Fourth Proportional to 480,586.68, 720,989.51 and 255,828.69

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Solution

The fourth proportional to 480,586.68, 720,989.51 and 255,828.69 is: 383,801.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,586.68 : 720,989.51 = 255,828.69 : x
  2. Step 2: Convert to fraction form
    480,586.68/720,989.51 = 255,828.69/x
  3. Step 3: Cross multiply
    480,586.68x = 720,989.51 × 255,828.69
  4. Step 4: Simplify right side
    480,586.68x = 184,449,801,847.04
  5. Step 5: Solve for x
    x = 184,449,801,847.04/480,586.68
  6. Step 6: Final answer
    x = 383,801.32

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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.