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Finding the Fourth Proportional to 906,636.11, 1,359,963.64 and 266,951.95

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Solution

The fourth proportional to 906,636.11, 1,359,963.64 and 266,951.95 is: 400,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,636.11 : 1,359,963.64 = 266,951.95 : x
  2. Step 2: Convert to fraction form
    906,636.11/1,359,963.64 = 266,951.95/x
  3. Step 3: Cross multiply
    906,636.11x = 1,359,963.64 × 266,951.95
  4. Step 4: Simplify right side
    906,636.11x = 363,044,945,627.10
  5. Step 5: Solve for x
    x = 363,044,945,627.10/906,636.11
  6. Step 6: Final answer
    x = 400,430.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.