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Finding the Fourth Proportional to 576,305.28, 795,206.16 and 321,656.40

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Solution

The fourth proportional to 576,305.28, 795,206.16 and 321,656.40 is: 443,832.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,305.28 : 795,206.16 = 321,656.40 : x
  2. Step 2: Convert to fraction form
    576,305.28/795,206.16 = 321,656.40/x
  3. Step 3: Cross multiply
    576,305.28x = 795,206.16 × 321,656.40
  4. Step 4: Simplify right side
    576,305.28x = 255,783,150,683.42
  5. Step 5: Solve for x
    x = 255,783,150,683.42/576,305.28
  6. Step 6: Final answer
    x = 443,832.74

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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.