Home / 738,939.28-1,019,735.64-399,407.52

Finding the Fourth Proportional to 738,939.28, 1,019,735.64 and 399,407.52

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Solution

The fourth proportional to 738,939.28, 1,019,735.64 and 399,407.52 is: 551,182.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,939.28 : 1,019,735.64 = 399,407.52 : x
  2. Step 2: Convert to fraction form
    738,939.28/1,019,735.64 = 399,407.52/x
  3. Step 3: Cross multiply
    738,939.28x = 1,019,735.64 × 399,407.52
  4. Step 4: Simplify right side
    738,939.28x = 407,290,083,028.01
  5. Step 5: Solve for x
    x = 407,290,083,028.01/738,939.28
  6. Step 6: Final answer
    x = 551,182.07

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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.