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Finding the Fourth Proportional to 326,607.22, 450,702.91 and 181,422.21

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Solution

The fourth proportional to 326,607.22, 450,702.91 and 181,422.21 is: 250,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,607.22 : 450,702.91 = 181,422.21 : x
  2. Step 2: Convert to fraction form
    326,607.22/450,702.91 = 181,422.21/x
  3. Step 3: Cross multiply
    326,607.22x = 450,702.91 × 181,422.21
  4. Step 4: Simplify right side
    326,607.22x = 81,767,517,985.63
  5. Step 5: Solve for x
    x = 81,767,517,985.63/326,607.22
  6. Step 6: Final answer
    x = 250,354.29

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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.