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Finding the Fourth Proportional to 567,991.80, 783,866.70 and 326,352.60

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Solution

The fourth proportional to 567,991.80, 783,866.70 and 326,352.60 is: 450,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,991.80 : 783,866.70 = 326,352.60 : x
  2. Step 2: Convert to fraction form
    567,991.80/783,866.70 = 326,352.60/x
  3. Step 3: Cross multiply
    567,991.80x = 783,866.70 × 326,352.60
  4. Step 4: Simplify right side
    567,991.80x = 255,816,935,598.42
  5. Step 5: Solve for x
    x = 255,816,935,598.42/567,991.80
  6. Step 6: Final answer
    x = 450,388.43

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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.