Home / 928,441.50-1,392,662.27-612,824.59

Finding the Fourth Proportional to 928,441.50, 1,392,662.27 and 612,824.59

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Solution

The fourth proportional to 928,441.50, 1,392,662.27 and 612,824.59 is: 919,236.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,441.50 : 1,392,662.27 = 612,824.59 : x
  2. Step 2: Convert to fraction form
    928,441.50/1,392,662.27 = 612,824.59/x
  3. Step 3: Cross multiply
    928,441.50x = 1,392,662.27 × 612,824.59
  4. Step 4: Simplify right side
    928,441.50x = 853,457,681,557.10
  5. Step 5: Solve for x
    x = 853,457,681,557.10/928,441.50
  6. Step 6: Final answer
    x = 919,236.89

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Half scale
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Double scale
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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.