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Finding the Fourth Proportional to 559,342.32, 771,867.48 and 326,790.84

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Solution

The fourth proportional to 559,342.32, 771,867.48 and 326,790.84 is: 450,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,342.32 : 771,867.48 = 326,790.84 : x
  2. Step 2: Convert to fraction form
    559,342.32/771,867.48 = 326,790.84/x
  3. Step 3: Cross multiply
    559,342.32x = 771,867.48 × 326,790.84
  4. Step 4: Simplify right side
    559,342.32x = 252,239,222,157.88
  5. Step 5: Solve for x
    x = 252,239,222,157.88/559,342.32
  6. Step 6: Final answer
    x = 450,956.80

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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.