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Finding the Fourth Proportional to 1,140,560.81, 1,573,867.08 and 681,584.01

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Solution

The fourth proportional to 1,140,560.81, 1,573,867.08 and 681,584.01 is: 940,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,560.81 : 1,573,867.08 = 681,584.01 : x
  2. Step 2: Convert to fraction form
    1,140,560.81/1,573,867.08 = 681,584.01/x
  3. Step 3: Cross multiply
    1,140,560.81x = 1,573,867.08 × 681,584.01
  4. Step 4: Simplify right side
    1,140,560.81x = 1,072,722,635,593.39
  5. Step 5: Solve for x
    x = 1,072,722,635,593.39/1,140,560.81
  6. Step 6: Final answer
    x = 940,522.09

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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.