Home / 403,179.75-556,376.86-228,781.72

Finding the Fourth Proportional to 403,179.75, 556,376.86 and 228,781.72

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Solution

The fourth proportional to 403,179.75, 556,376.86 and 228,781.72 is: 315,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,179.75 : 556,376.86 = 228,781.72 : x
  2. Step 2: Convert to fraction form
    403,179.75/556,376.86 = 228,781.72/x
  3. Step 3: Cross multiply
    403,179.75x = 556,376.86 × 228,781.72
  4. Step 4: Simplify right side
    403,179.75x = 127,288,854,999.00
  5. Step 5: Solve for x
    x = 127,288,854,999.00/403,179.75
  6. Step 6: Final answer
    x = 315,712.42

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1.5x scale

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.