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Finding the Fourth Proportional to 480,138.81, 662,618.13 and 265,274.26

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Solution

The fourth proportional to 480,138.81, 662,618.13 and 265,274.26 is: 366,093.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,138.81 : 662,618.13 = 265,274.26 : x
  2. Step 2: Convert to fraction form
    480,138.81/662,618.13 = 265,274.26/x
  3. Step 3: Cross multiply
    480,138.81x = 662,618.13 × 265,274.26
  4. Step 4: Simplify right side
    480,138.81x = 175,775,534,098.33
  5. Step 5: Solve for x
    x = 175,775,534,098.33/480,138.81
  6. Step 6: Final answer
    x = 366,093.16

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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.