Home / 515,923.20-773,228.70-459,498.60

Finding the Fourth Proportional to 515,923.20, 773,228.70 and 459,498.60

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Solution

The fourth proportional to 515,923.20, 773,228.70 and 459,498.60 is: 688,663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,923.20 : 773,228.70 = 459,498.60 : x
  2. Step 2: Convert to fraction form
    515,923.20/773,228.70 = 459,498.60/x
  3. Step 3: Cross multiply
    515,923.20x = 773,228.70 × 459,498.60
  4. Step 4: Simplify right side
    515,923.20x = 355,297,505,129.82
  5. Step 5: Solve for x
    x = 355,297,505,129.82/515,923.20
  6. Step 6: Final answer
    x = 688,663.56

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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.