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Finding the Fourth Proportional to 492,126.84, 679,134.98 and 265,772.28

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Solution

The fourth proportional to 492,126.84, 679,134.98 and 265,772.28 is: 366,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,126.84 : 679,134.98 = 265,772.28 : x
  2. Step 2: Convert to fraction form
    492,126.84/679,134.98 = 265,772.28/x
  3. Step 3: Cross multiply
    492,126.84x = 679,134.98 × 265,772.28
  4. Step 4: Simplify right side
    492,126.84x = 180,495,252,062.35
  5. Step 5: Solve for x
    x = 180,495,252,062.35/492,126.84
  6. Step 6: Final answer
    x = 366,765.71

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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.