Home / 403,001.06-556,141.46-221,709.09

Finding the Fourth Proportional to 403,001.06, 556,141.46 and 221,709.09

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Solution

The fourth proportional to 403,001.06, 556,141.46 and 221,709.09 is: 305,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,001.06 : 556,141.46 = 221,709.09 : x
  2. Step 2: Convert to fraction form
    403,001.06/556,141.46 = 221,709.09/x
  3. Step 3: Cross multiply
    403,001.06x = 556,141.46 × 221,709.09
  4. Step 4: Simplify right side
    403,001.06x = 123,301,615,899.33
  5. Step 5: Solve for x
    x = 123,301,615,899.33/403,001.06
  6. Step 6: Final answer
    x = 305,958.54

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1.5x scale

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.