Home / 639,220.76-882,094.68-367,096.80

Finding the Fourth Proportional to 639,220.76, 882,094.68 and 367,096.80

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Solution

The fourth proportional to 639,220.76, 882,094.68 and 367,096.80 is: 506,576.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,220.76 : 882,094.68 = 367,096.80 : x
  2. Step 2: Convert to fraction form
    639,220.76/882,094.68 = 367,096.80/x
  3. Step 3: Cross multiply
    639,220.76x = 882,094.68 × 367,096.80
  4. Step 4: Simplify right side
    639,220.76x = 323,814,134,325.02
  5. Step 5: Solve for x
    x = 323,814,134,325.02/639,220.76
  6. Step 6: Final answer
    x = 506,576.38

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.