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Finding the Fourth Proportional to 1,143,797.64, 1,578,629.97 and 634,664.04

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Solution

The fourth proportional to 1,143,797.64, 1,578,629.97 and 634,664.04 is: 875,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,797.64 : 1,578,629.97 = 634,664.04 : x
  2. Step 2: Convert to fraction form
    1,143,797.64/1,578,629.97 = 634,664.04/x
  3. Step 3: Cross multiply
    1,143,797.64x = 1,578,629.97 × 634,664.04
  4. Step 4: Simplify right side
    1,143,797.64x = 1,001,899,674,425.28
  5. Step 5: Solve for x
    x = 1,001,899,674,425.28/1,143,797.64
  6. Step 6: Final answer
    x = 875,941.37

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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.