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Finding the Fourth Proportional to 364,564.44, 503,133.72 and 221,291.64

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Solution

The fourth proportional to 364,564.44, 503,133.72 and 221,291.64 is: 305,403.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,564.44 : 503,133.72 = 221,291.64 : x
  2. Step 2: Convert to fraction form
    364,564.44/503,133.72 = 221,291.64/x
  3. Step 3: Cross multiply
    364,564.44x = 503,133.72 × 221,291.64
  4. Step 4: Simplify right side
    364,564.44x = 111,339,286,038.10
  5. Step 5: Solve for x
    x = 111,339,286,038.10/364,564.44
  6. Step 6: Final answer
    x = 305,403.58

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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.