Home / 928,861.20-1,391,448.60-534,416.40

Finding the Fourth Proportional to 928,861.20, 1,391,448.60 and 534,416.40

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Solution

The fourth proportional to 928,861.20, 1,391,448.60 and 534,416.40 is: 800,564.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,861.20 : 1,391,448.60 = 534,416.40 : x
  2. Step 2: Convert to fraction form
    928,861.20/1,391,448.60 = 534,416.40/x
  3. Step 3: Cross multiply
    928,861.20x = 1,391,448.60 × 534,416.40
  4. Step 4: Simplify right side
    928,861.20x = 743,612,951,597.04
  5. Step 5: Solve for x
    x = 743,612,951,597.04/928,861.20
  6. Step 6: Final answer
    x = 800,564.12

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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.