Home / 641,867.44-885,741.96-383,749.60

Finding the Fourth Proportional to 641,867.44, 885,741.96 and 383,749.60

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Solution

The fourth proportional to 641,867.44, 885,741.96 and 383,749.60 is: 529,553.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,867.44 : 885,741.96 = 383,749.60 : x
  2. Step 2: Convert to fraction form
    641,867.44/885,741.96 = 383,749.60/x
  3. Step 3: Cross multiply
    641,867.44x = 885,741.96 × 383,749.60
  4. Step 4: Simplify right side
    641,867.44x = 339,903,122,853.22
  5. Step 5: Solve for x
    x = 339,903,122,853.22/641,867.44
  6. Step 6: Final answer
    x = 529,553.46

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1.5x scale

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.