Home / 691,639.58-954,460.73-385,716.28

Finding the Fourth Proportional to 691,639.58, 954,460.73 and 385,716.28

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Solution

The fourth proportional to 691,639.58, 954,460.73 and 385,716.28 is: 532,287.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,639.58 : 954,460.73 = 385,716.28 : x
  2. Step 2: Convert to fraction form
    691,639.58/954,460.73 = 385,716.28/x
  3. Step 3: Cross multiply
    691,639.58x = 954,460.73 × 385,716.28
  4. Step 4: Simplify right side
    691,639.58x = 368,151,042,181.68
  5. Step 5: Solve for x
    x = 368,151,042,181.68/691,639.58
  6. Step 6: Final answer
    x = 532,287.41

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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.