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Finding the Fourth Proportional to 1,257,113.64, 1,733,610.78 and 844,582.44

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Solution

The fourth proportional to 1,257,113.64, 1,733,610.78 and 844,582.44 is: 1,164,713.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,113.64 : 1,733,610.78 = 844,582.44 : x
  2. Step 2: Convert to fraction form
    1,257,113.64/1,733,610.78 = 844,582.44/x
  3. Step 3: Cross multiply
    1,257,113.64x = 1,733,610.78 × 844,582.44
  4. Step 4: Simplify right side
    1,257,113.64x = 1,464,177,222,582.70
  5. Step 5: Solve for x
    x = 1,464,177,222,582.70/1,257,113.64
  6. Step 6: Final answer
    x = 1,164,713.50

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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.