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Finding the Fourth Proportional to 554,442.77, 765,131.57 and 299,793.89

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Solution

The fourth proportional to 554,442.77, 765,131.57 and 299,793.89 is: 413,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,442.77 : 765,131.57 = 299,793.89 : x
  2. Step 2: Convert to fraction form
    554,442.77/765,131.57 = 299,793.89/x
  3. Step 3: Cross multiply
    554,442.77x = 765,131.57 × 299,793.89
  4. Step 4: Simplify right side
    554,442.77x = 229,381,768,233.14
  5. Step 5: Solve for x
    x = 229,381,768,233.14/554,442.77
  6. Step 6: Final answer
    x = 413,715.86

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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.