Home / 1,292,790.27-1,939,185.42-406,326.27

Finding the Fourth Proportional to 1,292,790.27, 1,939,185.42 and 406,326.27

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Solution

The fourth proportional to 1,292,790.27, 1,939,185.42 and 406,326.27 is: 609,489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,790.27 : 1,939,185.42 = 406,326.27 : x
  2. Step 2: Convert to fraction form
    1,292,790.27/1,939,185.42 = 406,326.27/x
  3. Step 3: Cross multiply
    1,292,790.27x = 1,939,185.42 × 406,326.27
  4. Step 4: Simplify right side
    1,292,790.27x = 787,941,978,546.98
  5. Step 5: Solve for x
    x = 787,941,978,546.98/1,292,790.27
  6. Step 6: Final answer
    x = 609,489.41

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Double scale
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Similar ratio
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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.