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Finding the Fourth Proportional to 445,846.40, 668,957.20 and 277,507.52

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Solution

The fourth proportional to 445,846.40, 668,957.20 and 277,507.52 is: 416,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,846.40 : 668,957.20 = 277,507.52 : x
  2. Step 2: Convert to fraction form
    445,846.40/668,957.20 = 277,507.52/x
  3. Step 3: Cross multiply
    445,846.40x = 668,957.20 × 277,507.52
  4. Step 4: Simplify right side
    445,846.40x = 185,640,653,558.14
  5. Step 5: Solve for x
    x = 185,640,653,558.14/445,846.40
  6. Step 6: Final answer
    x = 416,378.05

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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.