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Finding the Fourth Proportional to 466,538.78, 644,133.39 and 358,918.94

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Solution

The fourth proportional to 466,538.78, 644,133.39 and 358,918.94 is: 495,546.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,538.78 : 644,133.39 = 358,918.94 : x
  2. Step 2: Convert to fraction form
    466,538.78/644,133.39 = 358,918.94/x
  3. Step 3: Cross multiply
    466,538.78x = 644,133.39 × 358,918.94
  4. Step 4: Simplify right side
    466,538.78x = 231,191,673,557.41
  5. Step 5: Solve for x
    x = 231,191,673,557.41/466,538.78
  6. Step 6: Final answer
    x = 495,546.53

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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.