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Finding the Fourth Proportional to 373,459.68, 515,372.00 and 212,314.77

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Solution

The fourth proportional to 373,459.68, 515,372.00 and 212,314.77 is: 292,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,459.68 : 515,372.00 = 212,314.77 : x
  2. Step 2: Convert to fraction form
    373,459.68/515,372.00 = 212,314.77/x
  3. Step 3: Cross multiply
    373,459.68x = 515,372.00 × 212,314.77
  4. Step 4: Simplify right side
    373,459.68x = 109,421,086,582.87
  5. Step 5: Solve for x
    x = 109,421,086,582.87/373,459.68
  6. Step 6: Final answer
    x = 292,993.04

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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.