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Finding the Third Proportional to 393,148.13 and 859,901.06

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Solution

The third proportional to 393,148.13 and 859,901.06 is: 1,880,791.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,148.13 : 859,901.06 = 859,901.06 : x
  2. Step 2: Convert to fraction form
    393,148.13/859,901.06 = 859,901.06/x
  3. Step 3: Cross multiply
    393,148.13x = 859,901.06 × 859,901.06
  4. Step 4: Simplify right side
    393,148.13x = 739,429,837,288.63
  5. Step 5: Solve for x
    x = 739,429,837,288.63/393,148.13
  6. Step 6: Final answer
    x = 1,880,791.97

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.