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Finding the Fourth Proportional to 373,633.40, 515,625.48 and 212,511.66

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Solution

The fourth proportional to 373,633.40, 515,625.48 and 212,511.66 is: 293,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,633.40 : 515,625.48 = 212,511.66 : x
  2. Step 2: Convert to fraction form
    373,633.40/515,625.48 = 212,511.66/x
  3. Step 3: Cross multiply
    373,633.40x = 515,625.48 × 212,511.66
  4. Step 4: Simplify right side
    373,633.40x = 109,576,426,693.10
  5. Step 5: Solve for x
    x = 109,576,426,693.10/373,633.40
  6. Step 6: Final answer
    x = 293,272.57

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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.