Home / 415,129.10-622,209.78-190,513.26

Finding the Fourth Proportional to 415,129.10, 622,209.78 and 190,513.26

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Solution

The fourth proportional to 415,129.10, 622,209.78 and 190,513.26 is: 285,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,129.10 : 622,209.78 = 190,513.26 : x
  2. Step 2: Convert to fraction form
    415,129.10/622,209.78 = 190,513.26/x
  3. Step 3: Cross multiply
    415,129.10x = 622,209.78 × 190,513.26
  4. Step 4: Simplify right side
    415,129.10x = 118,539,213,591.68
  5. Step 5: Solve for x
    x = 118,539,213,591.68/415,129.10
  6. Step 6: Final answer
    x = 285,547.83

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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.