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Finding the Fourth Proportional to 1,663,734.62, 2,295,955.30 and 899,788.16

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Solution

The fourth proportional to 1,663,734.62, 2,295,955.30 and 899,788.16 is: 1,241,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,734.62 : 2,295,955.30 = 899,788.16 : x
  2. Step 2: Convert to fraction form
    1,663,734.62/2,295,955.30 = 899,788.16/x
  3. Step 3: Cross multiply
    1,663,734.62x = 2,295,955.30 × 899,788.16
  4. Step 4: Simplify right side
    1,663,734.62x = 2,065,873,394,829.25
  5. Step 5: Solve for x
    x = 2,065,873,394,829.25/1,663,734.62
  6. Step 6: Final answer
    x = 1,241,708.49

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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.