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Finding the Fourth Proportional to 633,748.80, 950,623.20 and 381,806.40

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Solution

The fourth proportional to 633,748.80, 950,623.20 and 381,806.40 is: 572,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,748.80 : 950,623.20 = 381,806.40 : x
  2. Step 2: Convert to fraction form
    633,748.80/950,623.20 = 381,806.40/x
  3. Step 3: Cross multiply
    633,748.80x = 950,623.20 × 381,806.40
  4. Step 4: Simplify right side
    633,748.80x = 362,954,021,748.48
  5. Step 5: Solve for x
    x = 362,954,021,748.48/633,748.80
  6. Step 6: Final answer
    x = 572,709.60

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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.