Home / 1,383,517.34-1,909,256.54-771,709.73

Finding the Fourth Proportional to 1,383,517.34, 1,909,256.54 and 771,709.73

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Solution

The fourth proportional to 1,383,517.34, 1,909,256.54 and 771,709.73 is: 1,064,960.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,517.34 : 1,909,256.54 = 771,709.73 : x
  2. Step 2: Convert to fraction form
    1,383,517.34/1,909,256.54 = 771,709.73/x
  3. Step 3: Cross multiply
    1,383,517.34x = 1,909,256.54 × 771,709.73
  4. Step 4: Simplify right side
    1,383,517.34x = 1,473,391,848,984.13
  5. Step 5: Solve for x
    x = 1,473,391,848,984.13/1,383,517.34
  6. Step 6: Final answer
    x = 1,064,960.88

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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.