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Finding the Fourth Proportional to 543,713.60, 815,570.40 and 517,469.60

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Solution

The fourth proportional to 543,713.60, 815,570.40 and 517,469.60 is: 776,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,713.60 : 815,570.40 = 517,469.60 : x
  2. Step 2: Convert to fraction form
    543,713.60/815,570.40 = 517,469.60/x
  3. Step 3: Cross multiply
    543,713.60x = 815,570.40 × 517,469.60
  4. Step 4: Simplify right side
    543,713.60x = 422,032,888,659.84
  5. Step 5: Solve for x
    x = 422,032,888,659.84/543,713.60
  6. Step 6: Final answer
    x = 776,204.40

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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.