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Finding the Fourth Proportional to 484,120.80, 726,181.20 and 306,050.40

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Solution

The fourth proportional to 484,120.80, 726,181.20 and 306,050.40 is: 459,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,120.80 : 726,181.20 = 306,050.40 : x
  2. Step 2: Convert to fraction form
    484,120.80/726,181.20 = 306,050.40/x
  3. Step 3: Cross multiply
    484,120.80x = 726,181.20 × 306,050.40
  4. Step 4: Simplify right side
    484,120.80x = 222,248,046,732.48
  5. Step 5: Solve for x
    x = 222,248,046,732.48/484,120.80
  6. Step 6: Final answer
    x = 459,075.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.