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Finding the Fourth Proportional to 492,119.07, 679,124.31 and 265,764.57

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Solution

The fourth proportional to 492,119.07, 679,124.31 and 265,764.57 is: 366,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,119.07 : 679,124.31 = 265,764.57 : x
  2. Step 2: Convert to fraction form
    492,119.07/679,124.31 = 265,764.57/x
  3. Step 3: Cross multiply
    492,119.07x = 679,124.31 × 265,764.57
  4. Step 4: Simplify right side
    492,119.07x = 180,487,176,828.08
  5. Step 5: Solve for x
    x = 180,487,176,828.08/492,119.07
  6. Step 6: Final answer
    x = 366,755.10

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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.