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Finding the Fourth Proportional to 486,762.16, 671,730.40 and 271,902.64

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Solution

The fourth proportional to 486,762.16, 671,730.40 and 271,902.64 is: 375,224.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,762.16 : 671,730.40 = 271,902.64 : x
  2. Step 2: Convert to fraction form
    486,762.16/671,730.40 = 271,902.64/x
  3. Step 3: Cross multiply
    486,762.16x = 671,730.40 × 271,902.64
  4. Step 4: Simplify right side
    486,762.16x = 182,645,269,128.26
  5. Step 5: Solve for x
    x = 182,645,269,128.26/486,762.16
  6. Step 6: Final answer
    x = 375,224.87

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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.