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Finding the Fourth Proportional to 528,674.48, 793,167.24 and 212,968.88

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Solution

The fourth proportional to 528,674.48, 793,167.24 and 212,968.88 is: 319,515.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,674.48 : 793,167.24 = 212,968.88 : x
  2. Step 2: Convert to fraction form
    528,674.48/793,167.24 = 212,968.88/x
  3. Step 3: Cross multiply
    528,674.48x = 793,167.24 × 212,968.88
  4. Step 4: Simplify right side
    528,674.48x = 168,919,938,755.49
  5. Step 5: Solve for x
    x = 168,919,938,755.49/528,674.48
  6. Step 6: Final answer
    x = 319,515.97

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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.