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Finding the Fourth Proportional to 480,383.45, 662,995.07 and 276,430.20

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Solution

The fourth proportional to 480,383.45, 662,995.07 and 276,430.20 is: 381,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,383.45 : 662,995.07 = 276,430.20 : x
  2. Step 2: Convert to fraction form
    480,383.45/662,995.07 = 276,430.20/x
  3. Step 3: Cross multiply
    480,383.45x = 662,995.07 × 276,430.20
  4. Step 4: Simplify right side
    480,383.45x = 183,271,858,416.96
  5. Step 5: Solve for x
    x = 183,271,858,416.96/480,383.45
  6. Step 6: Final answer
    x = 381,511.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.