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Finding the Fourth Proportional to 492,231.52, 679,279.80 and 265,877.02

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Solution

The fourth proportional to 492,231.52, 679,279.80 and 265,877.02 is: 366,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,231.52 : 679,279.80 = 265,877.02 : x
  2. Step 2: Convert to fraction form
    492,231.52/679,279.80 = 265,877.02/x
  3. Step 3: Cross multiply
    492,231.52x = 679,279.80 × 265,877.02
  4. Step 4: Simplify right side
    492,231.52x = 180,604,888,970.20
  5. Step 5: Solve for x
    x = 180,604,888,970.20/492,231.52
  6. Step 6: Final answer
    x = 366,910.45

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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.