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Finding the Fourth Proportional to 555,722.58, 766,900.84 and 301,073.78

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Solution

The fourth proportional to 555,722.58, 766,900.84 and 301,073.78 is: 415,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,722.58 : 766,900.84 = 301,073.78 : x
  2. Step 2: Convert to fraction form
    555,722.58/766,900.84 = 301,073.78/x
  3. Step 3: Cross multiply
    555,722.58x = 766,900.84 × 301,073.78
  4. Step 4: Simplify right side
    555,722.58x = 230,893,734,783.98
  5. Step 5: Solve for x
    x = 230,893,734,783.98/555,722.58
  6. Step 6: Final answer
    x = 415,483.81

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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.