Home / 911,919.89-1,258,514.60-504,012.96

Finding the Fourth Proportional to 911,919.89, 1,258,514.60 and 504,012.96

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Solution

The fourth proportional to 911,919.89, 1,258,514.60 and 504,012.96 is: 695,573.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,919.89 : 1,258,514.60 = 504,012.96 : x
  2. Step 2: Convert to fraction form
    911,919.89/1,258,514.60 = 504,012.96/x
  3. Step 3: Cross multiply
    911,919.89x = 1,258,514.60 × 504,012.96
  4. Step 4: Simplify right side
    911,919.89x = 634,307,666,229.15
  5. Step 5: Solve for x
    x = 634,307,666,229.15/911,919.89
  6. Step 6: Final answer
    x = 695,573.89

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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.