Home / 642,522.66-963,831.78-193,207.56

Finding the Fourth Proportional to 642,522.66, 963,831.78 and 193,207.56

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Solution

The fourth proportional to 642,522.66, 963,831.78 and 193,207.56 is: 289,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,522.66 : 963,831.78 = 193,207.56 : x
  2. Step 2: Convert to fraction form
    642,522.66/963,831.78 = 193,207.56/x
  3. Step 3: Cross multiply
    642,522.66x = 963,831.78 × 193,207.56
  4. Step 4: Simplify right side
    642,522.66x = 186,219,586,464.26
  5. Step 5: Solve for x
    x = 186,219,586,464.26/642,522.66
  6. Step 6: Final answer
    x = 289,825.71

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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.