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Finding the Fourth Proportional to 492,283.52, 679,350.40 and 265,928.32

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Solution

The fourth proportional to 492,283.52, 679,350.40 and 265,928.32 is: 366,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,283.52 : 679,350.40 = 265,928.32 : x
  2. Step 2: Convert to fraction form
    492,283.52/679,350.40 = 265,928.32/x
  3. Step 3: Cross multiply
    492,283.52x = 679,350.40 × 265,928.32
  4. Step 4: Simplify right side
    492,283.52x = 180,658,510,563.33
  5. Step 5: Solve for x
    x = 180,658,510,563.33/492,283.52
  6. Step 6: Final answer
    x = 366,980.62

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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.