Home / 1,403,936-2,105,411.32-392,786.28

Finding the Fourth Proportional to 1,403,936, 2,105,411.32 and 392,786.28

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Solution

The fourth proportional to 1,403,936, 2,105,411.32 and 392,786.28 is: 589,041.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,936 : 2,105,411.32 = 392,786.28 : x
  2. Step 2: Convert to fraction form
    1,403,936/2,105,411.32 = 392,786.28/x
  3. Step 3: Cross multiply
    1,403,936x = 2,105,411.32 × 392,786.28
  4. Step 4: Simplify right side
    1,403,936x = 826,976,680,252.69
  5. Step 5: Solve for x
    x = 826,976,680,252.69/1,403,936
  6. Step 6: Final answer
    x = 589,041.58

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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.