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Finding the Fourth Proportional to 475,804.42, 656,503.76 and 271,790.12

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Solution

The fourth proportional to 475,804.42, 656,503.76 and 271,790.12 is: 375,009.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,804.42 : 656,503.76 = 271,790.12 : x
  2. Step 2: Convert to fraction form
    475,804.42/656,503.76 = 271,790.12/x
  3. Step 3: Cross multiply
    475,804.42x = 656,503.76 × 271,790.12
  4. Step 4: Simplify right side
    475,804.42x = 178,431,238,031.59
  5. Step 5: Solve for x
    x = 178,431,238,031.59/475,804.42
  6. Step 6: Final answer
    x = 375,009.63

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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.