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Finding the Fourth Proportional to 528,561.36, 792,843.90 and 154,584.36

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Solution

The fourth proportional to 528,561.36, 792,843.90 and 154,584.36 is: 231,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,561.36 : 792,843.90 = 154,584.36 : x
  2. Step 2: Convert to fraction form
    528,561.36/792,843.90 = 154,584.36/x
  3. Step 3: Cross multiply
    528,561.36x = 792,843.90 × 154,584.36
  4. Step 4: Simplify right side
    528,561.36x = 122,561,266,861.40
  5. Step 5: Solve for x
    x = 122,561,266,861.40/528,561.36
  6. Step 6: Final answer
    x = 231,877.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.