Home / 638,523.52-881,315.99-383,825.50

Finding the Fourth Proportional to 638,523.52, 881,315.99 and 383,825.50

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Solution

The fourth proportional to 638,523.52, 881,315.99 and 383,825.50 is: 529,771.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,523.52 : 881,315.99 = 383,825.50 : x
  2. Step 2: Convert to fraction form
    638,523.52/881,315.99 = 383,825.50/x
  3. Step 3: Cross multiply
    638,523.52x = 881,315.99 × 383,825.50
  4. Step 4: Simplify right side
    638,523.52x = 338,271,550,519.75
  5. Step 5: Solve for x
    x = 338,271,550,519.75/638,523.52
  6. Step 6: Final answer
    x = 529,771.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.