Home / 722,536.21-996,154.73-621,645.41

Finding the Fourth Proportional to 722,536.21, 996,154.73 and 621,645.41

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Solution

The fourth proportional to 722,536.21, 996,154.73 and 621,645.41 is: 857,057.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,536.21 : 996,154.73 = 621,645.41 : x
  2. Step 2: Convert to fraction form
    722,536.21/996,154.73 = 621,645.41/x
  3. Step 3: Cross multiply
    722,536.21x = 996,154.73 × 621,645.41
  4. Step 4: Simplify right side
    722,536.21x = 619,255,014,936.45
  5. Step 5: Solve for x
    x = 619,255,014,936.45/722,536.21
  6. Step 6: Final answer
    x = 857,057.42

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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.