Home / 296,669.31-445,016.30-86,307.27

Finding the Fourth Proportional to 296,669.31, 445,016.30 and 86,307.27

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Solution

The fourth proportional to 296,669.31, 445,016.30 and 86,307.27 is: 129,464.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,669.31 : 445,016.30 = 86,307.27 : x
  2. Step 2: Convert to fraction form
    296,669.31/445,016.30 = 86,307.27/x
  3. Step 3: Cross multiply
    296,669.31x = 445,016.30 × 86,307.27
  4. Step 4: Simplify right side
    296,669.31x = 38,408,141,526.96
  5. Step 5: Solve for x
    x = 38,408,141,526.96/296,669.31
  6. Step 6: Final answer
    x = 129,464.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.