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Finding the Fourth Proportional to 380,909.34, 525,505.32 and 244,921.68

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Solution

The fourth proportional to 380,909.34, 525,505.32 and 244,921.68 is: 337,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,909.34 : 525,505.32 = 244,921.68 : x
  2. Step 2: Convert to fraction form
    380,909.34/525,505.32 = 244,921.68/x
  3. Step 3: Cross multiply
    380,909.34x = 525,505.32 × 244,921.68
  4. Step 4: Simplify right side
    380,909.34x = 128,707,645,823.34
  5. Step 5: Solve for x
    x = 128,707,645,823.34/380,909.34
  6. Step 6: Final answer
    x = 337,895.75

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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.