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Finding the Fourth Proportional to 704,993.27, 973,143.44 and 418,513.58

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Solution

The fourth proportional to 704,993.27, 973,143.44 and 418,513.58 is: 577,698.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,993.27 : 973,143.44 = 418,513.58 : x
  2. Step 2: Convert to fraction form
    704,993.27/973,143.44 = 418,513.58/x
  3. Step 3: Cross multiply
    704,993.27x = 973,143.44 × 418,513.58
  4. Step 4: Simplify right side
    704,993.27x = 407,273,737,969.63
  5. Step 5: Solve for x
    x = 407,273,737,969.63/704,993.27
  6. Step 6: Final answer
    x = 577,698.76

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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.