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Finding the Fourth Proportional to 676,993.68, 934,213.26 and 371,011.74

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Solution

The fourth proportional to 676,993.68, 934,213.26 and 371,011.74 is: 511,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,993.68 : 934,213.26 = 371,011.74 : x
  2. Step 2: Convert to fraction form
    676,993.68/934,213.26 = 371,011.74/x
  3. Step 3: Cross multiply
    676,993.68x = 934,213.26 × 371,011.74
  4. Step 4: Simplify right side
    676,993.68x = 346,604,087,123.67
  5. Step 5: Solve for x
    x = 346,604,087,123.67/676,993.68
  6. Step 6: Final answer
    x = 511,975.37

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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.