Home / 911,993.60-1,258,542.96-504,120.80

Finding the Fourth Proportional to 911,993.60, 1,258,542.96 and 504,120.80

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Solution

The fourth proportional to 911,993.60, 1,258,542.96 and 504,120.80 is: 695,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,993.60 : 1,258,542.96 = 504,120.80 : x
  2. Step 2: Convert to fraction form
    911,993.60/1,258,542.96 = 504,120.80/x
  3. Step 3: Cross multiply
    911,993.60x = 1,258,542.96 × 504,120.80
  4. Step 4: Simplify right side
    911,993.60x = 634,457,683,829.57
  5. Step 5: Solve for x
    x = 634,457,683,829.57/911,993.60
  6. Step 6: Final answer
    x = 695,682.17

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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.