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Finding the Fourth Proportional to 1,968,474.51, 2,716,494.57 and 1,063,056.51

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Solution

The fourth proportional to 1,968,474.51, 2,716,494.57 and 1,063,056.51 is: 1,467,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,474.51 : 2,716,494.57 = 1,063,056.51 : x
  2. Step 2: Convert to fraction form
    1,968,474.51/2,716,494.57 = 1,063,056.51/x
  3. Step 3: Cross multiply
    1,968,474.51x = 2,716,494.57 × 1,063,056.51
  4. Step 4: Simplify right side
    1,968,474.51x = 2,887,787,237,018.15
  5. Step 5: Solve for x
    x = 2,887,787,237,018.15/1,968,474.51
  6. Step 6: Final answer
    x = 1,467,017.85

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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.