Home / 439,812.12-606,627.78-403,630.44

Finding the Fourth Proportional to 439,812.12, 606,627.78 and 403,630.44

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Solution

The fourth proportional to 439,812.12, 606,627.78 and 403,630.44 is: 556,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,812.12 : 606,627.78 = 403,630.44 : x
  2. Step 2: Convert to fraction form
    439,812.12/606,627.78 = 403,630.44/x
  3. Step 3: Cross multiply
    439,812.12x = 606,627.78 × 403,630.44
  4. Step 4: Simplify right side
    439,812.12x = 244,853,433,969.16
  5. Step 5: Solve for x
    x = 244,853,433,969.16/439,812.12
  6. Step 6: Final answer
    x = 556,722.79

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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.