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Finding the Fourth Proportional to 671,660.28, 926,820.72 and 381,179.34

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Solution

The fourth proportional to 671,660.28, 926,820.72 and 381,179.34 is: 525,987.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,660.28 : 926,820.72 = 381,179.34 : x
  2. Step 2: Convert to fraction form
    671,660.28/926,820.72 = 381,179.34/x
  3. Step 3: Cross multiply
    671,660.28x = 926,820.72 × 381,179.34
  4. Step 4: Simplify right side
    671,660.28x = 353,284,910,347.93
  5. Step 5: Solve for x
    x = 353,284,910,347.93/671,660.28
  6. Step 6: Final answer
    x = 525,987.50

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1.5x scale

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.