Home / 771,694.26-1,064,745.72-445,107.12

Finding the Fourth Proportional to 771,694.26, 1,064,745.72 and 445,107.12

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Solution

The fourth proportional to 771,694.26, 1,064,745.72 and 445,107.12 is: 614,136.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,694.26 : 1,064,745.72 = 445,107.12 : x
  2. Step 2: Convert to fraction form
    771,694.26/1,064,745.72 = 445,107.12/x
  3. Step 3: Cross multiply
    771,694.26x = 1,064,745.72 × 445,107.12
  4. Step 4: Simplify right side
    771,694.26x = 473,925,900,961.53
  5. Step 5: Solve for x
    x = 473,925,900,961.53/771,694.26
  6. Step 6: Final answer
    x = 614,136.87

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Double scale
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1.5x scale

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.