Home / 384,923.48-531,172.89-212,831.48

Finding the Fourth Proportional to 384,923.48, 531,172.89 and 212,831.48

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Solution

The fourth proportional to 384,923.48, 531,172.89 and 212,831.48 is: 293,695.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,923.48 : 531,172.89 = 212,831.48 : x
  2. Step 2: Convert to fraction form
    384,923.48/531,172.89 = 212,831.48/x
  3. Step 3: Cross multiply
    384,923.48x = 531,172.89 × 212,831.48
  4. Step 4: Simplify right side
    384,923.48x = 113,050,313,642.51
  5. Step 5: Solve for x
    x = 113,050,313,642.51/384,923.48
  6. Step 6: Final answer
    x = 293,695.56

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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.