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Finding the Fourth Proportional to 679,456.20, 937,652.62 and 373,559.60

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Solution

The fourth proportional to 679,456.20, 937,652.62 and 373,559.60 is: 515,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,456.20 : 937,652.62 = 373,559.60 : x
  2. Step 2: Convert to fraction form
    679,456.20/937,652.62 = 373,559.60/x
  3. Step 3: Cross multiply
    679,456.20x = 937,652.62 × 373,559.60
  4. Step 4: Simplify right side
    679,456.20x = 350,269,137,666.15
  5. Step 5: Solve for x
    x = 350,269,137,666.15/679,456.20
  6. Step 6: Final answer
    x = 515,513.93

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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.