Home / 296,964.96-445,512.96-86,619.36

Finding the Fourth Proportional to 296,964.96, 445,512.96 and 86,619.36

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Solution

The fourth proportional to 296,964.96, 445,512.96 and 86,619.36 is: 129,948.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,964.96 : 445,512.96 = 86,619.36 : x
  2. Step 2: Convert to fraction form
    296,964.96/445,512.96 = 86,619.36/x
  3. Step 3: Cross multiply
    296,964.96x = 445,512.96 × 86,619.36
  4. Step 4: Simplify right side
    296,964.96x = 38,590,047,466.91
  5. Step 5: Solve for x
    x = 38,590,047,466.91/296,964.96
  6. Step 6: Final answer
    x = 129,948.15

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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.