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Finding the Fourth Proportional to 679,608.12, 937,883.29 and 373,707.77

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Solution

The fourth proportional to 679,608.12, 937,883.29 and 373,707.77 is: 515,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,608.12 : 937,883.29 = 373,707.77 : x
  2. Step 2: Convert to fraction form
    679,608.12/937,883.29 = 373,707.77/x
  3. Step 3: Cross multiply
    679,608.12x = 937,883.29 × 373,707.77
  4. Step 4: Simplify right side
    679,608.12x = 350,494,272,826.16
  5. Step 5: Solve for x
    x = 350,494,272,826.16/679,608.12
  6. Step 6: Final answer
    x = 515,729.97

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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.