Home / 721,384.45-995,520.39-449,562.22

Finding the Fourth Proportional to 721,384.45, 995,520.39 and 449,562.22

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Solution

The fourth proportional to 721,384.45, 995,520.39 and 449,562.22 is: 620,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,384.45 : 995,520.39 = 449,562.22 : x
  2. Step 2: Convert to fraction form
    721,384.45/995,520.39 = 449,562.22/x
  3. Step 3: Cross multiply
    721,384.45x = 995,520.39 × 449,562.22
  4. Step 4: Simplify right side
    721,384.45x = 447,548,356,583.67
  5. Step 5: Solve for x
    x = 447,548,356,583.67/721,384.45
  6. Step 6: Final answer
    x = 620,402.00

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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.