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Finding the Fourth Proportional to 536,438.72, 738,963.46 and 459,711.48

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Solution

The fourth proportional to 536,438.72, 738,963.46 and 459,711.48 is: 633,268.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,438.72 : 738,963.46 = 459,711.48 : x
  2. Step 2: Convert to fraction form
    536,438.72/738,963.46 = 459,711.48/x
  3. Step 3: Cross multiply
    536,438.72x = 738,963.46 × 459,711.48
  4. Step 4: Simplify right side
    536,438.72x = 339,709,985,862.52
  5. Step 5: Solve for x
    x = 339,709,985,862.52/536,438.72
  6. Step 6: Final answer
    x = 633,268.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.