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Finding the Fourth Proportional to 633,255.28, 873,891.68 and 346,780.96

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Solution

The fourth proportional to 633,255.28, 873,891.68 and 346,780.96 is: 478,557.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,255.28 : 873,891.68 = 346,780.96 : x
  2. Step 2: Convert to fraction form
    633,255.28/873,891.68 = 346,780.96/x
  3. Step 3: Cross multiply
    633,255.28x = 873,891.68 × 346,780.96
  4. Step 4: Simplify right side
    633,255.28x = 303,048,995,726.41
  5. Step 5: Solve for x
    x = 303,048,995,726.41/633,255.28
  6. Step 6: Final answer
    x = 478,557.39

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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.