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Finding the Fourth Proportional to 663,143.52, 994,813.74 and 236,646.12

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Solution

The fourth proportional to 663,143.52, 994,813.74 and 236,646.12 is: 355,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,143.52 : 994,813.74 = 236,646.12 : x
  2. Step 2: Convert to fraction form
    663,143.52/994,813.74 = 236,646.12/x
  3. Step 3: Cross multiply
    663,143.52x = 994,813.74 × 236,646.12
  4. Step 4: Simplify right side
    663,143.52x = 235,418,811,693.69
  5. Step 5: Solve for x
    x = 235,418,811,693.69/663,143.52
  6. Step 6: Final answer
    x = 355,004.32

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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.