Home / 1,131,534.46-1,561,135.35-641,451.40

Finding the Fourth Proportional to 1,131,534.46, 1,561,135.35 and 641,451.40

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Solution

The fourth proportional to 1,131,534.46, 1,561,135.35 and 641,451.40 is: 884,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,534.46 : 1,561,135.35 = 641,451.40 : x
  2. Step 2: Convert to fraction form
    1,131,534.46/1,561,135.35 = 641,451.40/x
  3. Step 3: Cross multiply
    1,131,534.46x = 1,561,135.35 × 641,451.40
  4. Step 4: Simplify right side
    1,131,534.46x = 1,001,392,455,846.99
  5. Step 5: Solve for x
    x = 1,001,392,455,846.99/1,131,534.46
  6. Step 6: Final answer
    x = 884,986.27

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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.