Home / 919,457.52-1,268,819.40-505,955.64

Finding the Fourth Proportional to 919,457.52, 1,268,819.40 and 505,955.64

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Solution

The fourth proportional to 919,457.52, 1,268,819.40 and 505,955.64 is: 698,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,457.52 : 1,268,819.40 = 505,955.64 : x
  2. Step 2: Convert to fraction form
    919,457.52/1,268,819.40 = 505,955.64/x
  3. Step 3: Cross multiply
    919,457.52x = 1,268,819.40 × 505,955.64
  4. Step 4: Simplify right side
    919,457.52x = 641,966,331,571.42
  5. Step 5: Solve for x
    x = 641,966,331,571.42/919,457.52
  6. Step 6: Final answer
    x = 698,201.19

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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.