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Finding the Fourth Proportional to 672,575.76, 928,164.84 and 366,652.32

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Solution

The fourth proportional to 672,575.76, 928,164.84 and 366,652.32 is: 505,985.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,575.76 : 928,164.84 = 366,652.32 : x
  2. Step 2: Convert to fraction form
    672,575.76/928,164.84 = 366,652.32/x
  3. Step 3: Cross multiply
    672,575.76x = 928,164.84 × 366,652.32
  4. Step 4: Simplify right side
    672,575.76x = 340,313,791,928.43
  5. Step 5: Solve for x
    x = 340,313,791,928.43/672,575.76
  6. Step 6: Final answer
    x = 505,985.81

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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.