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Finding the Third Proportional to 742,145.63 and 1,111,272.75

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Solution

The third proportional to 742,145.63 and 1,111,272.75 is: 1,663,995.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,145.63 : 1,111,272.75 = 1,111,272.75 : x
  2. Step 2: Convert to fraction form
    742,145.63/1,111,272.75 = 1,111,272.75/x
  3. Step 3: Cross multiply
    742,145.63x = 1,111,272.75 × 1,111,272.75
  4. Step 4: Simplify right side
    742,145.63x = 1,234,927,124,892.56
  5. Step 5: Solve for x
    x = 1,234,927,124,892.56/742,145.63
  6. Step 6: Final answer
    x = 1,663,995.69

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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.