Home / 403,133.03-556,346.56-231,079.64

Finding the Fourth Proportional to 403,133.03, 556,346.56 and 231,079.64

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Solution

The fourth proportional to 403,133.03, 556,346.56 and 231,079.64 is: 318,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,133.03 : 556,346.56 = 231,079.64 : x
  2. Step 2: Convert to fraction form
    403,133.03/556,346.56 = 231,079.64/x
  3. Step 3: Cross multiply
    403,133.03x = 556,346.56 × 231,079.64
  4. Step 4: Simplify right side
    403,133.03x = 128,560,362,800.04
  5. Step 5: Solve for x
    x = 128,560,362,800.04/403,133.03
  6. Step 6: Final answer
    x = 318,903.08

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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.