Home / 443,913.46-665,889.63-128,402.26

Finding the Fourth Proportional to 443,913.46, 665,889.63 and 128,402.26

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Solution

The fourth proportional to 443,913.46, 665,889.63 and 128,402.26 is: 192,609.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,913.46 : 665,889.63 = 128,402.26 : x
  2. Step 2: Convert to fraction form
    443,913.46/665,889.63 = 128,402.26/x
  3. Step 3: Cross multiply
    443,913.46x = 665,889.63 × 128,402.26
  4. Step 4: Simplify right side
    443,913.46x = 85,501,733,402.56
  5. Step 5: Solve for x
    x = 85,501,733,402.56/443,913.46
  6. Step 6: Final answer
    x = 192,609.01

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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.