Home / 911,920.89-1,258,515.95-504,013.97

Finding the Fourth Proportional to 911,920.89, 1,258,515.95 and 504,013.97

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Solution

The fourth proportional to 911,920.89, 1,258,515.95 and 504,013.97 is: 695,575.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,920.89 : 1,258,515.95 = 504,013.97 : x
  2. Step 2: Convert to fraction form
    911,920.89/1,258,515.95 = 504,013.97/x
  3. Step 3: Cross multiply
    911,920.89x = 1,258,515.95 × 504,013.97
  4. Step 4: Simplify right side
    911,920.89x = 634,309,620,267.82
  5. Step 5: Solve for x
    x = 634,309,620,267.82/911,920.89
  6. Step 6: Final answer
    x = 695,575.27

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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.