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Finding the Fourth Proportional to 618,817.02, 853,952.10 and 343,173.27

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Solution

The fourth proportional to 618,817.02, 853,952.10 and 343,173.27 is: 473,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,817.02 : 853,952.10 = 343,173.27 : x
  2. Step 2: Convert to fraction form
    618,817.02/853,952.10 = 343,173.27/x
  3. Step 3: Cross multiply
    618,817.02x = 853,952.10 × 343,173.27
  4. Step 4: Simplify right side
    618,817.02x = 293,053,534,580.37
  5. Step 5: Solve for x
    x = 293,053,534,580.37/618,817.02
  6. Step 6: Final answer
    x = 473,570.58

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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.