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Finding the Fourth Proportional to 476,031.80, 656,930.58 and 261,167.96

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Solution

The fourth proportional to 476,031.80, 656,930.58 and 261,167.96 is: 360,415.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,031.80 : 656,930.58 = 261,167.96 : x
  2. Step 2: Convert to fraction form
    476,031.80/656,930.58 = 261,167.96/x
  3. Step 3: Cross multiply
    476,031.80x = 656,930.58 × 261,167.96
  4. Step 4: Simplify right side
    476,031.80x = 171,569,219,440.22
  5. Step 5: Solve for x
    x = 171,569,219,440.22/476,031.80
  6. Step 6: Final answer
    x = 360,415.46

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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.