Home / 691,672.56-954,581.52-405,433.14

Finding the Fourth Proportional to 691,672.56, 954,581.52 and 405,433.14

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Solution

The fourth proportional to 691,672.56, 954,581.52 and 405,433.14 is: 559,540.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,672.56 : 954,581.52 = 405,433.14 : x
  2. Step 2: Convert to fraction form
    691,672.56/954,581.52 = 405,433.14/x
  3. Step 3: Cross multiply
    691,672.56x = 954,581.52 × 405,433.14
  4. Step 4: Simplify right side
    691,672.56x = 387,018,983,039.57
  5. Step 5: Solve for x
    x = 387,018,983,039.57/691,672.56
  6. Step 6: Final answer
    x = 559,540.75

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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.