Home / 418,523.24-577,840.22-321,554.36

Finding the Fourth Proportional to 418,523.24, 577,840.22 and 321,554.36

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Solution

The fourth proportional to 418,523.24, 577,840.22 and 321,554.36 is: 443,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,523.24 : 577,840.22 = 321,554.36 : x
  2. Step 2: Convert to fraction form
    418,523.24/577,840.22 = 321,554.36/x
  3. Step 3: Cross multiply
    418,523.24x = 577,840.22 × 321,554.36
  4. Step 4: Simplify right side
    418,523.24x = 185,807,037,627.39
  5. Step 5: Solve for x
    x = 185,807,037,627.39/418,523.24
  6. Step 6: Final answer
    x = 443,958.72

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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.