Home / 1,919,204.30-2,878,608.64-639,673.52

Finding the Fourth Proportional to 1,919,204.30, 2,878,608.64 and 639,673.52

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Solution

The fourth proportional to 1,919,204.30, 2,878,608.64 and 639,673.52 is: 959,444.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,204.30 : 2,878,608.64 = 639,673.52 : x
  2. Step 2: Convert to fraction form
    1,919,204.30/2,878,608.64 = 639,673.52/x
  3. Step 3: Cross multiply
    1,919,204.30x = 2,878,608.64 × 639,673.52
  4. Step 4: Simplify right side
    1,919,204.30x = 1,841,369,703,859.80
  5. Step 5: Solve for x
    x = 1,841,369,703,859.80/1,919,204.30
  6. Step 6: Final answer
    x = 959,444.34

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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.