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Finding the Fourth Proportional to 578,655.72, 798,346.26 and 336,845.88

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Solution

The fourth proportional to 578,655.72, 798,346.26 and 336,845.88 is: 464,731.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,655.72 : 798,346.26 = 336,845.88 : x
  2. Step 2: Convert to fraction form
    578,655.72/798,346.26 = 336,845.88/x
  3. Step 3: Cross multiply
    578,655.72x = 798,346.26 × 336,845.88
  4. Step 4: Simplify right side
    578,655.72x = 268,919,648,494.41
  5. Step 5: Solve for x
    x = 268,919,648,494.41/578,655.72
  6. Step 6: Final answer
    x = 464,731.69

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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.