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Finding the Fourth Proportional to 884,354, 1,220,417.16 and 481,954.64

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Solution

The fourth proportional to 884,354, 1,220,417.16 and 481,954.64 is: 665,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,354 : 1,220,417.16 = 481,954.64 : x
  2. Step 2: Convert to fraction form
    884,354/1,220,417.16 = 481,954.64/x
  3. Step 3: Cross multiply
    884,354x = 1,220,417.16 × 481,954.64
  4. Step 4: Simplify right side
    884,354x = 588,185,712,997.62
  5. Step 5: Solve for x
    x = 588,185,712,997.62/884,354
  6. Step 6: Final answer
    x = 665,102.11

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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.