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Finding the Fourth Proportional to 373,856.84, 515,924.54 and 212,711.89

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Solution

The fourth proportional to 373,856.84, 515,924.54 and 212,711.89 is: 293,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,856.84 : 515,924.54 = 212,711.89 : x
  2. Step 2: Convert to fraction form
    373,856.84/515,924.54 = 212,711.89/x
  3. Step 3: Cross multiply
    373,856.84x = 515,924.54 × 212,711.89
  4. Step 4: Simplify right side
    373,856.84x = 109,743,282,445.08
  5. Step 5: Solve for x
    x = 109,743,282,445.08/373,856.84
  6. Step 6: Final answer
    x = 293,543.60

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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.