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Finding the Fourth Proportional to 628,004.64, 866,638.22 and 341,518.56

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Solution

The fourth proportional to 628,004.64, 866,638.22 and 341,518.56 is: 471,291.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,004.64 : 866,638.22 = 341,518.56 : x
  2. Step 2: Convert to fraction form
    628,004.64/866,638.22 = 341,518.56/x
  3. Step 3: Cross multiply
    628,004.64x = 866,638.22 × 341,518.56
  4. Step 4: Simplify right side
    628,004.64x = 295,973,036,935.36
  5. Step 5: Solve for x
    x = 295,973,036,935.36/628,004.64
  6. Step 6: Final answer
    x = 471,291.16

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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.