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Finding the Fourth Proportional to 448,176.48, 672,262.24 and 258,513.88

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Solution

The fourth proportional to 448,176.48, 672,262.24 and 258,513.88 is: 387,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,176.48 : 672,262.24 = 258,513.88 : x
  2. Step 2: Convert to fraction form
    448,176.48/672,262.24 = 258,513.88/x
  3. Step 3: Cross multiply
    448,176.48x = 672,262.24 × 258,513.88
  4. Step 4: Simplify right side
    448,176.48x = 173,789,120,039.89
  5. Step 5: Solve for x
    x = 173,789,120,039.89/448,176.48
  6. Step 6: Final answer
    x = 387,769.39

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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.