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Finding the Fourth Proportional to 1,832,608.68, 2,747,808.54 and 821,547.60

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Solution

The fourth proportional to 1,832,608.68, 2,747,808.54 and 821,547.60 is: 1,231,826.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,832,608.68 : 2,747,808.54 = 821,547.60 : x
  2. Step 2: Convert to fraction form
    1,832,608.68/2,747,808.54 = 821,547.60/x
  3. Step 3: Cross multiply
    1,832,608.68x = 2,747,808.54 × 821,547.60
  4. Step 4: Simplify right side
    1,832,608.68x = 2,257,455,511,296.50
  5. Step 5: Solve for x
    x = 2,257,455,511,296.50/1,832,608.68
  6. Step 6: Final answer
    x = 1,231,826.27

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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.