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Finding the Fourth Proportional to 480,379.82, 662,958.58 and 265,515.32

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Solution

The fourth proportional to 480,379.82, 662,958.58 and 265,515.32 is: 366,430.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,379.82 : 662,958.58 = 265,515.32 : x
  2. Step 2: Convert to fraction form
    480,379.82/662,958.58 = 265,515.32/x
  3. Step 3: Cross multiply
    480,379.82x = 662,958.58 × 265,515.32
  4. Step 4: Simplify right side
    480,379.82x = 176,025,659,515.45
  5. Step 5: Solve for x
    x = 176,025,659,515.45/480,379.82
  6. Step 6: Final answer
    x = 366,430.17

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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.