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Finding the Fourth Proportional to 548,590.44, 757,019.25 and 306,831.18

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Solution

The fourth proportional to 548,590.44, 757,019.25 and 306,831.18 is: 423,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,590.44 : 757,019.25 = 306,831.18 : x
  2. Step 2: Convert to fraction form
    548,590.44/757,019.25 = 306,831.18/x
  3. Step 3: Cross multiply
    548,590.44x = 757,019.25 × 306,831.18
  4. Step 4: Simplify right side
    548,590.44x = 232,277,109,760.22
  5. Step 5: Solve for x
    x = 232,277,109,760.22/548,590.44
  6. Step 6: Final answer
    x = 423,407.14

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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.