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Finding the Fourth Proportional to 417,830.69, 576,619.58 and 236,539.33

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Solution

The fourth proportional to 417,830.69, 576,619.58 and 236,539.33 is: 326,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,830.69 : 576,619.58 = 236,539.33 : x
  2. Step 2: Convert to fraction form
    417,830.69/576,619.58 = 236,539.33/x
  3. Step 3: Cross multiply
    417,830.69x = 576,619.58 × 236,539.33
  4. Step 4: Simplify right side
    417,830.69x = 136,393,209,118.08
  5. Step 5: Solve for x
    x = 136,393,209,118.08/417,830.69
  6. Step 6: Final answer
    x = 326,431.76

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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.