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Finding the Fourth Proportional to 480,431.48, 662,995.19 and 265,571.48

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Solution

The fourth proportional to 480,431.48, 662,995.19 and 265,571.48 is: 366,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,431.48 : 662,995.19 = 265,571.48 : x
  2. Step 2: Convert to fraction form
    480,431.48/662,995.19 = 265,571.48/x
  3. Step 3: Cross multiply
    480,431.48x = 662,995.19 × 265,571.48
  4. Step 4: Simplify right side
    480,431.48x = 176,072,616,162.60
  5. Step 5: Solve for x
    x = 176,072,616,162.60/480,431.48
  6. Step 6: Final answer
    x = 366,488.51

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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.