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Finding the Fourth Proportional to 549,794.98, 758,765.37 and 320,340.34

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Solution

The fourth proportional to 549,794.98, 758,765.37 and 320,340.34 is: 442,097.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,794.98 : 758,765.37 = 320,340.34 : x
  2. Step 2: Convert to fraction form
    549,794.98/758,765.37 = 320,340.34/x
  3. Step 3: Cross multiply
    549,794.98x = 758,765.37 × 320,340.34
  4. Step 4: Simplify right side
    549,794.98x = 243,063,156,606.03
  5. Step 5: Solve for x
    x = 243,063,156,606.03/549,794.98
  6. Step 6: Final answer
    x = 442,097.81

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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.