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Finding the Fourth Proportional to 469,526.49, 647,934.80 and 262,791.81

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Solution

The fourth proportional to 469,526.49, 647,934.80 and 262,791.81 is: 362,646.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,526.49 : 647,934.80 = 262,791.81 : x
  2. Step 2: Convert to fraction form
    469,526.49/647,934.80 = 262,791.81/x
  3. Step 3: Cross multiply
    469,526.49x = 647,934.80 × 262,791.81
  4. Step 4: Simplify right side
    469,526.49x = 170,271,957,540.03
  5. Step 5: Solve for x
    x = 170,271,957,540.03/469,526.49
  6. Step 6: Final answer
    x = 362,646.12

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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.