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Finding the Fourth Proportional to 679,502.22, 937,713.65 and 373,583.80

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Solution

The fourth proportional to 679,502.22, 937,713.65 and 373,583.80 is: 515,545.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,502.22 : 937,713.65 = 373,583.80 : x
  2. Step 2: Convert to fraction form
    679,502.22/937,713.65 = 373,583.80/x
  3. Step 3: Cross multiply
    679,502.22x = 937,713.65 × 373,583.80
  4. Step 4: Simplify right side
    679,502.22x = 350,314,628,678.87
  5. Step 5: Solve for x
    x = 350,314,628,678.87/679,502.22
  6. Step 6: Final answer
    x = 515,545.97

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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.