Home / 628,682.15-867,600.47-445,249.34

Finding the Fourth Proportional to 628,682.15, 867,600.47 and 445,249.34

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Solution

The fourth proportional to 628,682.15, 867,600.47 and 445,249.34 is: 614,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,682.15 : 867,600.47 = 445,249.34 : x
  2. Step 2: Convert to fraction form
    628,682.15/867,600.47 = 445,249.34/x
  3. Step 3: Cross multiply
    628,682.15x = 867,600.47 × 445,249.34
  4. Step 4: Simplify right side
    628,682.15x = 386,298,530,086.94
  5. Step 5: Solve for x
    x = 386,298,530,086.94/628,682.15
  6. Step 6: Final answer
    x = 614,457.61

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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.