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Finding the Fourth Proportional to 480,245.31, 662,751.81 and 265,398.90

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Solution

The fourth proportional to 480,245.31, 662,751.81 and 265,398.90 is: 366,257.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,245.31 : 662,751.81 = 265,398.90 : x
  2. Step 2: Convert to fraction form
    480,245.31/662,751.81 = 265,398.90/x
  3. Step 3: Cross multiply
    480,245.31x = 662,751.81 × 265,398.90
  4. Step 4: Simplify right side
    480,245.31x = 175,893,601,347.01
  5. Step 5: Solve for x
    x = 175,893,601,347.01/480,245.31
  6. Step 6: Final answer
    x = 366,257.82

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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.