Home / 387,786.11-581,365.35-174,397.73

Finding the Fourth Proportional to 387,786.11, 581,365.35 and 174,397.73

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Solution

The fourth proportional to 387,786.11, 581,365.35 and 174,397.73 is: 261,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,786.11 : 581,365.35 = 174,397.73 : x
  2. Step 2: Convert to fraction form
    387,786.11/581,365.35 = 174,397.73/x
  3. Step 3: Cross multiply
    387,786.11x = 581,365.35 × 174,397.73
  4. Step 4: Simplify right side
    387,786.11x = 101,388,794,433.83
  5. Step 5: Solve for x
    x = 101,388,794,433.83/387,786.11
  6. Step 6: Final answer
    x = 261,455.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.