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Finding the Fourth Proportional to 536,887.88, 805,915.34 and 217,259.75

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Solution

The fourth proportional to 536,887.88, 805,915.34 and 217,259.75 is: 326,125.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,887.88 : 805,915.34 = 217,259.75 : x
  2. Step 2: Convert to fraction form
    536,887.88/805,915.34 = 217,259.75/x
  3. Step 3: Cross multiply
    536,887.88x = 805,915.34 × 217,259.75
  4. Step 4: Simplify right side
    536,887.88x = 175,092,967,032.78
  5. Step 5: Solve for x
    x = 175,092,967,032.78/536,887.88
  6. Step 6: Final answer
    x = 326,125.76

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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.