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Finding the Third Proportional to 1,052,547.75 and 1,640,428.88

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Solution

The third proportional to 1,052,547.75 and 1,640,428.88 is: 2,556,660.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052,547.75 : 1,640,428.88 = 1,640,428.88 : x
  2. Step 2: Convert to fraction form
    1,052,547.75/1,640,428.88 = 1,640,428.88/x
  3. Step 3: Cross multiply
    1,052,547.75x = 1,640,428.88 × 1,640,428.88
  4. Step 4: Simplify right side
    1,052,547.75x = 2,691,006,893,933.77
  5. Step 5: Solve for x
    x = 2,691,006,893,933.77/1,052,547.75
  6. Step 6: Final answer
    x = 2,556,660.16

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.