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Finding the Fourth Proportional to 469,321.98, 647,660.42 and 265,412.93

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Solution

The fourth proportional to 469,321.98, 647,660.42 and 265,412.93 is: 366,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,321.98 : 647,660.42 = 265,412.93 : x
  2. Step 2: Convert to fraction form
    469,321.98/647,660.42 = 265,412.93/x
  3. Step 3: Cross multiply
    469,321.98x = 647,660.42 × 265,412.93
  4. Step 4: Simplify right side
    469,321.98x = 171,897,448,390.17
  5. Step 5: Solve for x
    x = 171,897,448,390.17/469,321.98
  6. Step 6: Final answer
    x = 366,267.63

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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.