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Finding the Fourth Proportional to 415,159.09, 622,935.45 and 247,011.59

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Solution

The fourth proportional to 415,159.09, 622,935.45 and 247,011.59 is: 370,634.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,159.09 : 622,935.45 = 247,011.59 : x
  2. Step 2: Convert to fraction form
    415,159.09/622,935.45 = 247,011.59/x
  3. Step 3: Cross multiply
    415,159.09x = 622,935.45 × 247,011.59
  4. Step 4: Simplify right side
    415,159.09x = 153,872,275,971.87
  5. Step 5: Solve for x
    x = 153,872,275,971.87/415,159.09
  6. Step 6: Final answer
    x = 370,634.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.