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Finding the Fourth Proportional to 632,346.72, 872,670.42 and 374,371.80

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Solution

The fourth proportional to 632,346.72, 872,670.42 and 374,371.80 is: 516,652.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,346.72 : 872,670.42 = 374,371.80 : x
  2. Step 2: Convert to fraction form
    632,346.72/872,670.42 = 374,371.80/x
  3. Step 3: Cross multiply
    632,346.72x = 872,670.42 × 374,371.80
  4. Step 4: Simplify right side
    632,346.72x = 326,703,195,942.16
  5. Step 5: Solve for x
    x = 326,703,195,942.16/632,346.72
  6. Step 6: Final answer
    x = 516,652.00

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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.