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Finding the Fourth Proportional to 512,186.10, 718,110.30 and 512,186.10

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Solution

The fourth proportional to 512,186.10, 718,110.30 and 512,186.10 is: 718,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,186.10 : 718,110.30 = 512,186.10 : x
  2. Step 2: Convert to fraction form
    512,186.10/718,110.30 = 512,186.10/x
  3. Step 3: Cross multiply
    512,186.10x = 718,110.30 × 512,186.10
  4. Step 4: Simplify right side
    512,186.10x = 367,806,113,926.83
  5. Step 5: Solve for x
    x = 367,806,113,926.83/512,186.10
  6. Step 6: Final answer
    x = 718,110.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.