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Finding the Fourth Proportional to 484,121.80, 726,182.70 and 306,051.40

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Solution

The fourth proportional to 484,121.80, 726,182.70 and 306,051.40 is: 459,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,121.80 : 726,182.70 = 306,051.40 : x
  2. Step 2: Convert to fraction form
    484,121.80/726,182.70 = 306,051.40/x
  3. Step 3: Cross multiply
    484,121.80x = 726,182.70 × 306,051.40
  4. Step 4: Simplify right side
    484,121.80x = 222,249,231,990.78
  5. Step 5: Solve for x
    x = 222,249,231,990.78/484,121.80
  6. Step 6: Final answer
    x = 459,077.10

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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.