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Finding the Fourth Proportional to 448,873, 673,308.69 and 261,753.28

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Solution

The fourth proportional to 448,873, 673,308.69 and 261,753.28 is: 392,629.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,873 : 673,308.69 = 261,753.28 : x
  2. Step 2: Convert to fraction form
    448,873/673,308.69 = 261,753.28/x
  3. Step 3: Cross multiply
    448,873x = 673,308.69 × 261,753.28
  4. Step 4: Simplify right side
    448,873x = 176,240,758,060.00
  5. Step 5: Solve for x
    x = 176,240,758,060.00/448,873
  6. Step 6: Final answer
    x = 392,629.45

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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.