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Finding the Fourth Proportional to 480,298.82, 662,793.86 and 276,415.22

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Solution

The fourth proportional to 480,298.82, 662,793.86 and 276,415.22 is: 381,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,298.82 : 662,793.86 = 276,415.22 : x
  2. Step 2: Convert to fraction form
    480,298.82/662,793.86 = 276,415.22/x
  3. Step 3: Cross multiply
    480,298.82x = 662,793.86 × 276,415.22
  4. Step 4: Simplify right side
    480,298.82x = 183,206,310,626.55
  5. Step 5: Solve for x
    x = 183,206,310,626.55/480,298.82
  6. Step 6: Final answer
    x = 381,442.35

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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.