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Finding the Fourth Proportional to 492,287.63, 679,356.92 and 265,933.13

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Solution

The fourth proportional to 492,287.63, 679,356.92 and 265,933.13 is: 366,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,287.63 : 679,356.92 = 265,933.13 : x
  2. Step 2: Convert to fraction form
    492,287.63/679,356.92 = 265,933.13/x
  3. Step 3: Cross multiply
    492,287.63x = 679,356.92 × 265,933.13
  4. Step 4: Simplify right side
    492,287.63x = 180,663,509,390.81
  5. Step 5: Solve for x
    x = 180,663,509,390.81/492,287.63
  6. Step 6: Final answer
    x = 366,987.71

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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.