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Finding the Fourth Proportional to 1,663,734.83, 2,295,955.58 and 899,788.39

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Solution

The fourth proportional to 1,663,734.83, 2,295,955.58 and 899,788.39 is: 1,241,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,734.83 : 2,295,955.58 = 899,788.39 : x
  2. Step 2: Convert to fraction form
    1,663,734.83/2,295,955.58 = 899,788.39/x
  3. Step 3: Cross multiply
    1,663,734.83x = 2,295,955.58 × 899,788.39
  4. Step 4: Simplify right side
    1,663,734.83x = 2,065,874,158,861.00
  5. Step 5: Solve for x
    x = 2,065,874,158,861.00/1,663,734.83
  6. Step 6: Final answer
    x = 1,241,708.79

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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.