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Finding the Fourth Proportional to 480,739.14, 663,408.69 and 265,874.59

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Solution

The fourth proportional to 480,739.14, 663,408.69 and 265,874.59 is: 366,900.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,739.14 : 663,408.69 = 265,874.59 : x
  2. Step 2: Convert to fraction form
    480,739.14/663,408.69 = 265,874.59/x
  3. Step 3: Cross multiply
    480,739.14x = 663,408.69 × 265,874.59
  4. Step 4: Simplify right side
    480,739.14x = 176,383,513,456.19
  5. Step 5: Solve for x
    x = 176,383,513,456.19/480,739.14
  6. Step 6: Final answer
    x = 366,900.67

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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.