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Finding the Fourth Proportional to 480,516.48, 663,083.28 and 265,643.64

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Solution

The fourth proportional to 480,516.48, 663,083.28 and 265,643.64 is: 366,571.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,516.48 : 663,083.28 = 265,643.64 : x
  2. Step 2: Convert to fraction form
    480,516.48/663,083.28 = 265,643.64/x
  3. Step 3: Cross multiply
    480,516.48x = 663,083.28 × 265,643.64
  4. Step 4: Simplify right side
    480,516.48x = 176,143,856,122.34
  5. Step 5: Solve for x
    x = 176,143,856,122.34/480,516.48
  6. Step 6: Final answer
    x = 366,571.94

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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.