Home / 505,265.03-697,241.24-287,453.19

Finding the Fourth Proportional to 505,265.03, 697,241.24 and 287,453.19

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Solution

The fourth proportional to 505,265.03, 697,241.24 and 287,453.19 is: 396,671.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,265.03 : 697,241.24 = 287,453.19 : x
  2. Step 2: Convert to fraction form
    505,265.03/697,241.24 = 287,453.19/x
  3. Step 3: Cross multiply
    505,265.03x = 697,241.24 × 287,453.19
  4. Step 4: Simplify right side
    505,265.03x = 200,424,217,200.29
  5. Step 5: Solve for x
    x = 200,424,217,200.29/505,265.03
  6. Step 6: Final answer
    x = 396,671.46

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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.