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Finding the Fourth Proportional to 528,840.98, 793,576.65 and 191,907.92

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Solution

The fourth proportional to 528,840.98, 793,576.65 and 191,907.92 is: 287,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,840.98 : 793,576.65 = 191,907.92 : x
  2. Step 2: Convert to fraction form
    528,840.98/793,576.65 = 191,907.92/x
  3. Step 3: Cross multiply
    528,840.98x = 793,576.65 × 191,907.92
  4. Step 4: Simplify right side
    528,840.98x = 152,293,644,262.07
  5. Step 5: Solve for x
    x = 152,293,644,262.07/528,840.98
  6. Step 6: Final answer
    x = 287,976.25

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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.