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Finding the Fourth Proportional to 539,039.97, 744,119.87 and 384,091.29

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Solution

The fourth proportional to 539,039.97, 744,119.87 and 384,091.29 is: 530,220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,039.97 : 744,119.87 = 384,091.29 : x
  2. Step 2: Convert to fraction form
    539,039.97/744,119.87 = 384,091.29/x
  3. Step 3: Cross multiply
    539,039.97x = 744,119.87 × 384,091.29
  4. Step 4: Simplify right side
    539,039.97x = 285,809,958,862.48
  5. Step 5: Solve for x
    x = 285,809,958,862.48/539,039.97
  6. Step 6: Final answer
    x = 530,220.35

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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.