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Finding the Fourth Proportional to 555,840.31, 767,060.81 and 301,191.57

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Solution

The fourth proportional to 555,840.31, 767,060.81 and 301,191.57 is: 415,645.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,840.31 : 767,060.81 = 301,191.57 : x
  2. Step 2: Convert to fraction form
    555,840.31/767,060.81 = 301,191.57/x
  3. Step 3: Cross multiply
    555,840.31x = 767,060.81 × 301,191.57
  4. Step 4: Simplify right side
    555,840.31x = 231,032,244,308.11
  5. Step 5: Solve for x
    x = 231,032,244,308.11/555,840.31
  6. Step 6: Final answer
    x = 415,645.00

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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.