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Finding the Fourth Proportional to 449,595.46, 674,725.68 and 212,938.54

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Solution

The fourth proportional to 449,595.46, 674,725.68 and 212,938.54 is: 319,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,595.46 : 674,725.68 = 212,938.54 : x
  2. Step 2: Convert to fraction form
    449,595.46/674,725.68 = 212,938.54/x
  3. Step 3: Cross multiply
    449,595.46x = 674,725.68 × 212,938.54
  4. Step 4: Simplify right side
    449,595.46x = 143,675,101,199.71
  5. Step 5: Solve for x
    x = 143,675,101,199.71/449,595.46
  6. Step 6: Final answer
    x = 319,565.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.