Home / 1,403,933-2,105,406.82-392,783.28

Finding the Fourth Proportional to 1,403,933, 2,105,406.82 and 392,783.28

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Solution

The fourth proportional to 1,403,933, 2,105,406.82 and 392,783.28 is: 589,037.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,933 : 2,105,406.82 = 392,783.28 : x
  2. Step 2: Convert to fraction form
    1,403,933/2,105,406.82 = 392,783.28/x
  3. Step 3: Cross multiply
    1,403,933x = 2,105,406.82 × 392,783.28
  4. Step 4: Simplify right side
    1,403,933x = 826,968,596,493.97
  5. Step 5: Solve for x
    x = 826,968,596,493.97/1,403,933
  6. Step 6: Final answer
    x = 589,037.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.