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Finding the Fourth Proportional to 528,628.61, 793,276.49 and 225,022.31

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Solution

The fourth proportional to 528,628.61, 793,276.49 and 225,022.31 is: 337,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,628.61 : 793,276.49 = 225,022.31 : x
  2. Step 2: Convert to fraction form
    528,628.61/793,276.49 = 225,022.31/x
  3. Step 3: Cross multiply
    528,628.61x = 793,276.49 × 225,022.31
  4. Step 4: Simplify right side
    528,628.61x = 178,504,904,844.67
  5. Step 5: Solve for x
    x = 178,504,904,844.67/528,628.61
  6. Step 6: Final answer
    x = 337,675.45

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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.