Home / 414,492.70-621,739.05-114,973.28

Finding the Fourth Proportional to 414,492.70, 621,739.05 and 114,973.28

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Solution

The fourth proportional to 414,492.70, 621,739.05 and 114,973.28 is: 172,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,492.70 : 621,739.05 = 114,973.28 : x
  2. Step 2: Convert to fraction form
    414,492.70/621,739.05 = 114,973.28/x
  3. Step 3: Cross multiply
    414,492.70x = 621,739.05 × 114,973.28
  4. Step 4: Simplify right side
    414,492.70x = 71,483,374,640.20
  5. Step 5: Solve for x
    x = 71,483,374,640.20/414,492.70
  6. Step 6: Final answer
    x = 172,459.91

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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.