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Finding the Fourth Proportional to 459,064.45, 688,619.76 and 325,563.49

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Solution

The fourth proportional to 459,064.45, 688,619.76 and 325,563.49 is: 488,361.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,064.45 : 688,619.76 = 325,563.49 : x
  2. Step 2: Convert to fraction form
    459,064.45/688,619.76 = 325,563.49/x
  3. Step 3: Cross multiply
    459,064.45x = 688,619.76 × 325,563.49
  4. Step 4: Simplify right side
    459,064.45x = 224,189,452,348.56
  5. Step 5: Solve for x
    x = 224,189,452,348.56/459,064.45
  6. Step 6: Final answer
    x = 488,361.61

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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.