Home / 827,872.68-1,240,770.20-354,000.81

Finding the Fourth Proportional to 827,872.68, 1,240,770.20 and 354,000.81

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Solution

The fourth proportional to 827,872.68, 1,240,770.20 and 354,000.81 is: 530,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,872.68 : 1,240,770.20 = 354,000.81 : x
  2. Step 2: Convert to fraction form
    827,872.68/1,240,770.20 = 354,000.81/x
  3. Step 3: Cross multiply
    827,872.68x = 1,240,770.20 × 354,000.81
  4. Step 4: Simplify right side
    827,872.68x = 439,233,660,698.00
  5. Step 5: Solve for x
    x = 439,233,660,698.00/827,872.68
  6. Step 6: Final answer
    x = 530,557.02

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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.