Home / 1,681,716.83-2,320,768.53-917,770.39

Finding the Fourth Proportional to 1,681,716.83, 2,320,768.53 and 917,770.39

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Solution

The fourth proportional to 1,681,716.83, 2,320,768.53 and 917,770.39 is: 1,266,522.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,716.83 : 2,320,768.53 = 917,770.39 : x
  2. Step 2: Convert to fraction form
    1,681,716.83/2,320,768.53 = 917,770.39/x
  3. Step 3: Cross multiply
    1,681,716.83x = 2,320,768.53 × 917,770.39
  4. Step 4: Simplify right side
    1,681,716.83x = 2,129,932,633,075.91
  5. Step 5: Solve for x
    x = 2,129,932,633,075.91/1,681,716.83
  6. Step 6: Final answer
    x = 1,266,522.76

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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.