Home / 928,447.24-1,392,670.88-612,830.34

Finding the Fourth Proportional to 928,447.24, 1,392,670.88 and 612,830.34

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Solution

The fourth proportional to 928,447.24, 1,392,670.88 and 612,830.34 is: 919,245.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,447.24 : 1,392,670.88 = 612,830.34 : x
  2. Step 2: Convert to fraction form
    928,447.24/1,392,670.88 = 612,830.34/x
  3. Step 3: Cross multiply
    928,447.24x = 1,392,670.88 × 612,830.34
  4. Step 4: Simplify right side
    928,447.24x = 853,470,968,898.50
  5. Step 5: Solve for x
    x = 853,470,968,898.50/928,447.24
  6. Step 6: Final answer
    x = 919,245.52

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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.