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Finding the Fourth Proportional to 671,783.77, 927,087.84 and 381,422.35

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Solution

The fourth proportional to 671,783.77, 927,087.84 and 381,422.35 is: 526,377.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,783.77 : 927,087.84 = 381,422.35 : x
  2. Step 2: Convert to fraction form
    671,783.77/927,087.84 = 381,422.35/x
  3. Step 3: Cross multiply
    671,783.77x = 927,087.84 × 381,422.35
  4. Step 4: Simplify right side
    671,783.77x = 353,612,022,589.22
  5. Step 5: Solve for x
    x = 353,612,022,589.22/671,783.77
  6. Step 6: Final answer
    x = 526,377.74

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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.