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Finding the Fourth Proportional to 480,279.56, 662,767.92 and 276,362.01

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Solution

The fourth proportional to 480,279.56, 662,767.92 and 276,362.01 is: 381,369.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,279.56 : 662,767.92 = 276,362.01 : x
  2. Step 2: Convert to fraction form
    480,279.56/662,767.92 = 276,362.01/x
  3. Step 3: Cross multiply
    480,279.56x = 662,767.92 × 276,362.01
  4. Step 4: Simplify right side
    480,279.56x = 183,163,874,534.72
  5. Step 5: Solve for x
    x = 183,163,874,534.72/480,279.56
  6. Step 6: Final answer
    x = 381,369.29

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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.