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Finding the Fourth Proportional to 463,740.72, 639,943.92 and 262,536.72

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Solution

The fourth proportional to 463,740.72, 639,943.92 and 262,536.72 is: 362,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,740.72 : 639,943.92 = 262,536.72 : x
  2. Step 2: Convert to fraction form
    463,740.72/639,943.92 = 262,536.72/x
  3. Step 3: Cross multiply
    463,740.72x = 639,943.92 × 262,536.72
  4. Step 4: Simplify right side
    463,740.72x = 168,008,777,740.74
  5. Step 5: Solve for x
    x = 168,008,777,740.74/463,740.72
  6. Step 6: Final answer
    x = 362,290.33

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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.