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Finding the Fourth Proportional to 1,630,957.95, 2,250,749.79 and 895,943.21

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Solution

The fourth proportional to 1,630,957.95, 2,250,749.79 and 895,943.21 is: 1,236,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,957.95 : 2,250,749.79 = 895,943.21 : x
  2. Step 2: Convert to fraction form
    1,630,957.95/2,250,749.79 = 895,943.21/x
  3. Step 3: Cross multiply
    1,630,957.95x = 2,250,749.79 × 895,943.21
  4. Step 4: Simplify right side
    1,630,957.95x = 2,016,543,991,759.43
  5. Step 5: Solve for x
    x = 2,016,543,991,759.43/1,630,957.95
  6. Step 6: Final answer
    x = 1,236,416.91

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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.