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Finding the Fourth Proportional to 815,577.60, 1,144,170.60 and 815,577.60

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Solution

The fourth proportional to 815,577.60, 1,144,170.60 and 815,577.60 is: 1,144,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,577.60 : 1,144,170.60 = 815,577.60 : x
  2. Step 2: Convert to fraction form
    815,577.60/1,144,170.60 = 815,577.60/x
  3. Step 3: Cross multiply
    815,577.60x = 1,144,170.60 × 815,577.60
  4. Step 4: Simplify right side
    815,577.60x = 933,159,911,938.56
  5. Step 5: Solve for x
    x = 933,159,911,938.56/815,577.60
  6. Step 6: Final answer
    x = 1,144,170.60

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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.