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Finding the Fourth Proportional to 576,215.40, 795,252.48 and 321,619.44

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Solution

The fourth proportional to 576,215.40, 795,252.48 and 321,619.44 is: 443,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,215.40 : 795,252.48 = 321,619.44 : x
  2. Step 2: Convert to fraction form
    576,215.40/795,252.48 = 321,619.44/x
  3. Step 3: Cross multiply
    576,215.40x = 795,252.48 × 321,619.44
  4. Step 4: Simplify right side
    576,215.40x = 255,768,657,276.21
  5. Step 5: Solve for x
    x = 255,768,657,276.21/576,215.40
  6. Step 6: Final answer
    x = 443,876.82

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1.5x scale

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.