Home / 1,330,020.61-1,995,311.46-431,392.56

Finding the Fourth Proportional to 1,330,020.61, 1,995,311.46 and 431,392.56

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Solution

The fourth proportional to 1,330,020.61, 1,995,311.46 and 431,392.56 is: 647,179.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,020.61 : 1,995,311.46 = 431,392.56 : x
  2. Step 2: Convert to fraction form
    1,330,020.61/1,995,311.46 = 431,392.56/x
  3. Step 3: Cross multiply
    1,330,020.61x = 1,995,311.46 × 431,392.56
  4. Step 4: Simplify right side
    1,330,020.61x = 860,762,506,593.22
  5. Step 5: Solve for x
    x = 860,762,506,593.22/1,330,020.61
  6. Step 6: Final answer
    x = 647,179.83

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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.