Home / 1,330,039.35-1,995,339.38-431,411.18

Finding the Fourth Proportional to 1,330,039.35, 1,995,339.38 and 431,411.18

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Solution

The fourth proportional to 1,330,039.35, 1,995,339.38 and 431,411.18 is: 647,207.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,039.35 : 1,995,339.38 = 431,411.18 : x
  2. Step 2: Convert to fraction form
    1,330,039.35/1,995,339.38 = 431,411.18/x
  3. Step 3: Cross multiply
    1,330,039.35x = 1,995,339.38 × 431,411.18
  4. Step 4: Simplify right side
    1,330,039.35x = 860,811,704,292.52
  5. Step 5: Solve for x
    x = 860,811,704,292.52/1,330,039.35
  6. Step 6: Final answer
    x = 647,207.70

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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.