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Finding the Fourth Proportional to 633,745.80, 950,618.70 and 381,803.40

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Solution

The fourth proportional to 633,745.80, 950,618.70 and 381,803.40 is: 572,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,745.80 : 950,618.70 = 381,803.40 : x
  2. Step 2: Convert to fraction form
    633,745.80/950,618.70 = 381,803.40/x
  3. Step 3: Cross multiply
    633,745.80x = 950,618.70 × 381,803.40
  4. Step 4: Simplify right side
    633,745.80x = 362,949,451,763.58
  5. Step 5: Solve for x
    x = 362,949,451,763.58/633,745.80
  6. Step 6: Final answer
    x = 572,705.10

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Similar ratio
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1.5x scale

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.