Home / 401,286.74-553,763.70-219,992.45

Finding the Fourth Proportional to 401,286.74, 553,763.70 and 219,992.45

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Solution

The fourth proportional to 401,286.74, 553,763.70 and 219,992.45 is: 303,583.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,286.74 : 553,763.70 = 219,992.45 : x
  2. Step 2: Convert to fraction form
    401,286.74/553,763.70 = 219,992.45/x
  3. Step 3: Cross multiply
    401,286.74x = 553,763.70 × 219,992.45
  4. Step 4: Simplify right side
    401,286.74x = 121,823,830,315.25
  5. Step 5: Solve for x
    x = 121,823,830,315.25/401,286.74
  6. Step 6: Final answer
    x = 303,583.00

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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.