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Finding the Fourth Proportional to 720,829.44, 1,081,520.64 and 277,632

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Solution

The fourth proportional to 720,829.44, 1,081,520.64 and 277,632 is: 416,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,829.44 : 1,081,520.64 = 277,632 : x
  2. Step 2: Convert to fraction form
    720,829.44/1,081,520.64 = 277,632/x
  3. Step 3: Cross multiply
    720,829.44x = 1,081,520.64 × 277,632
  4. Step 4: Simplify right side
    720,829.44x = 300,264,738,324.48
  5. Step 5: Solve for x
    x = 300,264,738,324.48/720,829.44
  6. Step 6: Final answer
    x = 416,554.49

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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.