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Finding the Fourth Proportional to 474,809.40, 655,238.91 and 259,969.46

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Solution

The fourth proportional to 474,809.40, 655,238.91 and 259,969.46 is: 358,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,809.40 : 655,238.91 = 259,969.46 : x
  2. Step 2: Convert to fraction form
    474,809.40/655,238.91 = 259,969.46/x
  3. Step 3: Cross multiply
    474,809.40x = 655,238.91 × 259,969.46
  4. Step 4: Simplify right side
    474,809.40x = 170,342,102,327.49
  5. Step 5: Solve for x
    x = 170,342,102,327.49/474,809.40
  6. Step 6: Final answer
    x = 358,758.91

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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.