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Finding the Fourth Proportional to 1,386,754, 2,080,131 and 336,130

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Solution

The fourth proportional to 1,386,754, 2,080,131 and 336,130 is: 504,195

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,754 : 2,080,131 = 336,130 : x
  2. Step 2: Convert to fraction form
    1,386,754/2,080,131 = 336,130/x
  3. Step 3: Cross multiply
    1,386,754x = 2,080,131 × 336,130
  4. Step 4: Simplify right side
    1,386,754x = 699,194,433,030
  5. Step 5: Solve for x
    x = 699,194,433,030/1,386,754
  6. Step 6: Final answer
    x = 504,195

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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.