Home / 919,071.87-1,268,230.33-531,810.05

Finding the Fourth Proportional to 919,071.87, 1,268,230.33 and 531,810.05

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Solution

The fourth proportional to 919,071.87, 1,268,230.33 and 531,810.05 is: 733,846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,071.87 : 1,268,230.33 = 531,810.05 : x
  2. Step 2: Convert to fraction form
    919,071.87/1,268,230.33 = 531,810.05/x
  3. Step 3: Cross multiply
    919,071.87x = 1,268,230.33 × 531,810.05
  4. Step 4: Simplify right side
    919,071.87x = 674,457,633,099.33
  5. Step 5: Solve for x
    x = 674,457,633,099.33/919,071.87
  6. Step 6: Final answer
    x = 733,846.45

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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.