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Finding the Fourth Proportional to 416,645.40, 575,006.08 and 235,390.64

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Solution

The fourth proportional to 416,645.40, 575,006.08 and 235,390.64 is: 324,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,645.40 : 575,006.08 = 235,390.64 : x
  2. Step 2: Convert to fraction form
    416,645.40/575,006.08 = 235,390.64/x
  3. Step 3: Cross multiply
    416,645.40x = 575,006.08 × 235,390.64
  4. Step 4: Simplify right side
    416,645.40x = 135,351,049,175.09
  5. Step 5: Solve for x
    x = 135,351,049,175.09/416,645.40
  6. Step 6: Final answer
    x = 324,859.10

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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.