Home / 691,995.20-954,977-401,584.36

Finding the Fourth Proportional to 691,995.20, 954,977 and 401,584.36

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Solution

The fourth proportional to 691,995.20, 954,977 and 401,584.36 is: 554,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,995.20 : 954,977 = 401,584.36 : x
  2. Step 2: Convert to fraction form
    691,995.20/954,977 = 401,584.36/x
  3. Step 3: Cross multiply
    691,995.20x = 954,977 × 401,584.36
  4. Step 4: Simplify right side
    691,995.20x = 383,503,827,359.72
  5. Step 5: Solve for x
    x = 383,503,827,359.72/691,995.20
  6. Step 6: Final answer
    x = 554,200.13

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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.