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Finding the Fourth Proportional to 581,617.80, 815,923.80 and 581,617.80

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Solution

The fourth proportional to 581,617.80, 815,923.80 and 581,617.80 is: 815,923.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,617.80 : 815,923.80 = 581,617.80 : x
  2. Step 2: Convert to fraction form
    581,617.80/815,923.80 = 581,617.80/x
  3. Step 3: Cross multiply
    581,617.80x = 815,923.80 × 581,617.80
  4. Step 4: Simplify right side
    581,617.80x = 474,555,805,523.64
  5. Step 5: Solve for x
    x = 474,555,805,523.64/581,617.80
  6. Step 6: Final answer
    x = 815,923.80

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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.