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Finding the Fourth Proportional to 888,969.60, 1,226,778 and 481,071.45

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Solution

The fourth proportional to 888,969.60, 1,226,778 and 481,071.45 is: 663,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,969.60 : 1,226,778 = 481,071.45 : x
  2. Step 2: Convert to fraction form
    888,969.60/1,226,778 = 481,071.45/x
  3. Step 3: Cross multiply
    888,969.60x = 1,226,778 × 481,071.45
  4. Step 4: Simplify right side
    888,969.60x = 590,167,871,288.10
  5. Step 5: Solve for x
    x = 590,167,871,288.10/888,969.60
  6. Step 6: Final answer
    x = 663,878.58

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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.