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Finding the Fourth Proportional to 804,578.55, 1,129,559.25 and 804,578.55

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Solution

The fourth proportional to 804,578.55, 1,129,559.25 and 804,578.55 is: 1,129,559.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,578.55 : 1,129,559.25 = 804,578.55 : x
  2. Step 2: Convert to fraction form
    804,578.55/1,129,559.25 = 804,578.55/x
  3. Step 3: Cross multiply
    804,578.55x = 1,129,559.25 × 804,578.55
  4. Step 4: Simplify right side
    804,578.55x = 908,819,143,504.09
  5. Step 5: Solve for x
    x = 908,819,143,504.09/804,578.55
  6. Step 6: Final answer
    x = 1,129,559.25

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.