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Finding the Fourth Proportional to 383,016.60, 577,393.11 and 357,326.64

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Solution

The fourth proportional to 383,016.60, 577,393.11 and 357,326.64 is: 538,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,016.60 : 577,393.11 = 357,326.64 : x
  2. Step 2: Convert to fraction form
    383,016.60/577,393.11 = 357,326.64/x
  3. Step 3: Cross multiply
    383,016.60x = 577,393.11 × 357,326.64
  4. Step 4: Simplify right side
    383,016.60x = 206,317,939,955.45
  5. Step 5: Solve for x
    x = 206,317,939,955.45/383,016.60
  6. Step 6: Final answer
    x = 538,665.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.