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Finding the Fourth Proportional to 618,965.00, 854,128.92 and 343,296.83

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Solution

The fourth proportional to 618,965.00, 854,128.92 and 343,296.83 is: 473,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,965.00 : 854,128.92 = 343,296.83 : x
  2. Step 2: Convert to fraction form
    618,965.00/854,128.92 = 343,296.83/x
  3. Step 3: Cross multiply
    618,965.00x = 854,128.92 × 343,296.83
  4. Step 4: Simplify right side
    618,965.00x = 293,219,750,647.32
  5. Step 5: Solve for x
    x = 293,219,750,647.32/618,965.00
  6. Step 6: Final answer
    x = 473,725.90

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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.