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Finding the Fourth Proportional to 633,512.69, 873,546.95 and 403,705.95

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Solution

The fourth proportional to 633,512.69, 873,546.95 and 403,705.95 is: 556,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,512.69 : 873,546.95 = 403,705.95 : x
  2. Step 2: Convert to fraction form
    633,512.69/873,546.95 = 403,705.95/x
  3. Step 3: Cross multiply
    633,512.69x = 873,546.95 × 403,705.95
  4. Step 4: Simplify right side
    633,512.69x = 352,656,099,300.82
  5. Step 5: Solve for x
    x = 352,656,099,300.82/633,512.69
  6. Step 6: Final answer
    x = 556,667.78

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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.