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Finding the Fourth Proportional to 480,889.81, 663,634.92 and 276,977.35

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Solution

The fourth proportional to 480,889.81, 663,634.92 and 276,977.35 is: 382,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,889.81 : 663,634.92 = 276,977.35 : x
  2. Step 2: Convert to fraction form
    480,889.81/663,634.92 = 276,977.35/x
  3. Step 3: Cross multiply
    480,889.81x = 663,634.92 × 276,977.35
  4. Step 4: Simplify right side
    480,889.81x = 183,811,841,509.06
  5. Step 5: Solve for x
    x = 183,811,841,509.06/480,889.81
  6. Step 6: Final answer
    x = 382,232.76

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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.