Home / 1,330,026.35-1,995,320.12-431,398.31

Finding the Fourth Proportional to 1,330,026.35, 1,995,320.12 and 431,398.31

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Solution

The fourth proportional to 1,330,026.35, 1,995,320.12 and 431,398.31 is: 647,188.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,026.35 : 1,995,320.12 = 431,398.31 : x
  2. Step 2: Convert to fraction form
    1,330,026.35/1,995,320.12 = 431,398.31/x
  3. Step 3: Cross multiply
    1,330,026.35x = 1,995,320.12 × 431,398.31
  4. Step 4: Simplify right side
    1,330,026.35x = 860,777,715,543.41
  5. Step 5: Solve for x
    x = 860,777,715,543.41/1,330,026.35
  6. Step 6: Final answer
    x = 647,188.47

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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.