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Finding the Fourth Proportional to 578,662.16, 798,369.26 and 374,869.31

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Solution

The fourth proportional to 578,662.16, 798,369.26 and 374,869.31 is: 517,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,662.16 : 798,369.26 = 374,869.31 : x
  2. Step 2: Convert to fraction form
    578,662.16/798,369.26 = 374,869.31/x
  3. Step 3: Cross multiply
    578,662.16x = 798,369.26 × 374,869.31
  4. Step 4: Simplify right side
    578,662.16x = 299,284,127,755.22
  5. Step 5: Solve for x
    x = 299,284,127,755.22/578,662.16
  6. Step 6: Final answer
    x = 517,200.11

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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.