Home / 459,114.40-688,671.60-192,786.40

Finding the Fourth Proportional to 459,114.40, 688,671.60 and 192,786.40

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Solution

The fourth proportional to 459,114.40, 688,671.60 and 192,786.40 is: 289,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,114.40 : 688,671.60 = 192,786.40 : x
  2. Step 2: Convert to fraction form
    459,114.40/688,671.60 = 192,786.40/x
  3. Step 3: Cross multiply
    459,114.40x = 688,671.60 × 192,786.40
  4. Step 4: Simplify right side
    459,114.40x = 132,766,518,546.24
  5. Step 5: Solve for x
    x = 132,766,518,546.24/459,114.40
  6. Step 6: Final answer
    x = 289,179.60

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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.