Home / 515,584.20-773,076.56-345,000.84

Finding the Fourth Proportional to 515,584.20, 773,076.56 and 345,000.84

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Solution

The fourth proportional to 515,584.20, 773,076.56 and 345,000.84 is: 517,300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,584.20 : 773,076.56 = 345,000.84 : x
  2. Step 2: Convert to fraction form
    515,584.20/773,076.56 = 345,000.84/x
  3. Step 3: Cross multiply
    515,584.20x = 773,076.56 × 345,000.84
  4. Step 4: Simplify right side
    515,584.20x = 266,712,060,859.31
  5. Step 5: Solve for x
    x = 266,712,060,859.31/515,584.20
  6. Step 6: Final answer
    x = 517,300.69

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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.