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Finding the Fourth Proportional to 422,437.84, 632,146.92 and 366,931.96

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Solution

The fourth proportional to 422,437.84, 632,146.92 and 366,931.96 is: 549,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,437.84 : 632,146.92 = 366,931.96 : x
  2. Step 2: Convert to fraction form
    422,437.84/632,146.92 = 366,931.96/x
  3. Step 3: Cross multiply
    422,437.84x = 632,146.92 × 366,931.96
  4. Step 4: Simplify right side
    422,437.84x = 231,954,908,363.56
  5. Step 5: Solve for x
    x = 231,954,908,363.56/422,437.84
  6. Step 6: Final answer
    x = 549,086.48

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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.