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Finding the Fourth Proportional to 1,560,565, 2,153,579.70 and 845,173

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Solution

The fourth proportional to 1,560,565, 2,153,579.70 and 845,173 is: 1,166,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560,565 : 2,153,579.70 = 845,173 : x
  2. Step 2: Convert to fraction form
    1,560,565/2,153,579.70 = 845,173/x
  3. Step 3: Cross multiply
    1,560,565x = 2,153,579.70 × 845,173
  4. Step 4: Simplify right side
    1,560,565x = 1,820,147,415,788.10
  5. Step 5: Solve for x
    x = 1,820,147,415,788.10/1,560,565
  6. Step 6: Final answer
    x = 1,166,338.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.