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Finding the Fourth Proportional to 555,716.08, 766,886.70 and 301,067.74

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Solution

The fourth proportional to 555,716.08, 766,886.70 and 301,067.74 is: 415,472.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,716.08 : 766,886.70 = 301,067.74 : x
  2. Step 2: Convert to fraction form
    555,716.08/766,886.70 = 301,067.74/x
  3. Step 3: Cross multiply
    555,716.08x = 766,886.70 × 301,067.74
  4. Step 4: Simplify right side
    555,716.08x = 230,884,845,605.06
  5. Step 5: Solve for x
    x = 230,884,845,605.06/555,716.08
  6. Step 6: Final answer
    x = 415,472.67

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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.