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Finding the Fourth Proportional to 492,272.48, 679,336.32 and 265,918.08

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Solution

The fourth proportional to 492,272.48, 679,336.32 and 265,918.08 is: 366,967.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,272.48 : 679,336.32 = 265,918.08 : x
  2. Step 2: Convert to fraction form
    492,272.48/679,336.32 = 265,918.08/x
  3. Step 3: Cross multiply
    492,272.48x = 679,336.32 × 265,918.08
  4. Step 4: Simplify right side
    492,272.48x = 180,647,809,888.67
  5. Step 5: Solve for x
    x = 180,647,809,888.67/492,272.48
  6. Step 6: Final answer
    x = 366,967.11

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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.