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Finding the Fourth Proportional to 373,466.81, 515,427.77 and 212,346

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Solution

The fourth proportional to 373,466.81, 515,427.77 and 212,346 is: 293,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,466.81 : 515,427.77 = 212,346 : x
  2. Step 2: Convert to fraction form
    373,466.81/515,427.77 = 212,346/x
  3. Step 3: Cross multiply
    373,466.81x = 515,427.77 × 212,346
  4. Step 4: Simplify right side
    373,466.81x = 109,449,025,248.42
  5. Step 5: Solve for x
    x = 109,449,025,248.42/373,466.81
  6. Step 6: Final answer
    x = 293,062.25

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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.