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Finding the Fourth Proportional to 480,321.72, 662,786.52 and 265,432.58

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Solution

The fourth proportional to 480,321.72, 662,786.52 and 265,432.58 is: 366,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,321.72 : 662,786.52 = 265,432.58 : x
  2. Step 2: Convert to fraction form
    480,321.72/662,786.52 = 265,432.58/x
  3. Step 3: Cross multiply
    480,321.72x = 662,786.52 × 265,432.58
  4. Step 4: Simplify right side
    480,321.72x = 175,925,135,992.82
  5. Step 5: Solve for x
    x = 175,925,135,992.82/480,321.72
  6. Step 6: Final answer
    x = 366,265.21

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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.