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Finding the Fourth Proportional to 459,076.60, 688,614.90 and 325,232.20

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Solution

The fourth proportional to 459,076.60, 688,614.90 and 325,232.20 is: 487,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,076.60 : 688,614.90 = 325,232.20 : x
  2. Step 2: Convert to fraction form
    459,076.60/688,614.90 = 325,232.20/x
  3. Step 3: Cross multiply
    459,076.60x = 688,614.90 × 325,232.20
  4. Step 4: Simplify right side
    459,076.60x = 223,959,738,879.78
  5. Step 5: Solve for x
    x = 223,959,738,879.78/459,076.60
  6. Step 6: Final answer
    x = 487,848.30

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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.