Home / 515,824.20-773,080.20-459,399.60

Finding the Fourth Proportional to 515,824.20, 773,080.20 and 459,399.60

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Solution

The fourth proportional to 515,824.20, 773,080.20 and 459,399.60 is: 688,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,824.20 : 773,080.20 = 459,399.60 : x
  2. Step 2: Convert to fraction form
    515,824.20/773,080.20 = 459,399.60/x
  3. Step 3: Cross multiply
    515,824.20x = 773,080.20 × 459,399.60
  4. Step 4: Simplify right side
    515,824.20x = 355,152,734,647.92
  5. Step 5: Solve for x
    x = 355,152,734,647.92/515,824.20
  6. Step 6: Final answer
    x = 688,515.07

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1.5x scale

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.