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Finding the Fourth Proportional to 310,578.56, 428,574.84 and 174,590.96

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Solution

The fourth proportional to 310,578.56, 428,574.84 and 174,590.96 is: 240,922.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,578.56 : 428,574.84 = 174,590.96 : x
  2. Step 2: Convert to fraction form
    310,578.56/428,574.84 = 174,590.96/x
  3. Step 3: Cross multiply
    310,578.56x = 428,574.84 × 174,590.96
  4. Step 4: Simplify right side
    310,578.56x = 74,825,292,747.45
  5. Step 5: Solve for x
    x = 74,825,292,747.45/310,578.56
  6. Step 6: Final answer
    x = 240,922.27

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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.