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Finding the Fourth Proportional to 528,840.63, 793,576.17 and 191,907.59

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Solution

The fourth proportional to 528,840.63, 793,576.17 and 191,907.59 is: 287,975.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,840.63 : 793,576.17 = 191,907.59 : x
  2. Step 2: Convert to fraction form
    528,840.63/793,576.17 = 191,907.59/x
  3. Step 3: Cross multiply
    528,840.63x = 793,576.17 × 191,907.59
  4. Step 4: Simplify right side
    528,840.63x = 152,293,286,298.25
  5. Step 5: Solve for x
    x = 152,293,286,298.25/528,840.63
  6. Step 6: Final answer
    x = 287,975.77

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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.