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Finding the Fourth Proportional to 447,007.77, 616,871.82 and 243,058.58

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Solution

The fourth proportional to 447,007.77, 616,871.82 and 243,058.58 is: 335,421.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,007.77 : 616,871.82 = 243,058.58 : x
  2. Step 2: Convert to fraction form
    447,007.77/616,871.82 = 243,058.58/x
  3. Step 3: Cross multiply
    447,007.77x = 616,871.82 × 243,058.58
  4. Step 4: Simplify right side
    447,007.77x = 149,935,985,526.86
  5. Step 5: Solve for x
    x = 149,935,985,526.86/447,007.77
  6. Step 6: Final answer
    x = 335,421.43

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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.