Home / 1,210,709.62-1,670,790.57-666,847.37

Finding the Fourth Proportional to 1,210,709.62, 1,670,790.57 and 666,847.37

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Solution

The fourth proportional to 1,210,709.62, 1,670,790.57 and 666,847.37 is: 920,255.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,709.62 : 1,670,790.57 = 666,847.37 : x
  2. Step 2: Convert to fraction form
    1,210,709.62/1,670,790.57 = 666,847.37/x
  3. Step 3: Cross multiply
    1,210,709.62x = 1,670,790.57 × 666,847.37
  4. Step 4: Simplify right side
    1,210,709.62x = 1,114,162,291,578.91
  5. Step 5: Solve for x
    x = 1,114,162,291,578.91/1,210,709.62
  6. Step 6: Final answer
    x = 920,255.59

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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.