Home / 919,219.41-1,268,004.72-551,601.45

Finding the Fourth Proportional to 919,219.41, 1,268,004.72 and 551,601.45

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Solution

The fourth proportional to 919,219.41, 1,268,004.72 and 551,601.45 is: 760,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,219.41 : 1,268,004.72 = 551,601.45 : x
  2. Step 2: Convert to fraction form
    919,219.41/1,268,004.72 = 551,601.45/x
  3. Step 3: Cross multiply
    919,219.41x = 1,268,004.72 × 551,601.45
  4. Step 4: Simplify right side
    919,219.41x = 699,433,242,158.84
  5. Step 5: Solve for x
    x = 699,433,242,158.84/919,219.41
  6. Step 6: Final answer
    x = 760,899.12

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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.