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Finding the Fourth Proportional to 626,152.22, 864,091.73 and 339,672.31

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Solution

The fourth proportional to 626,152.22, 864,091.73 and 339,672.31 is: 468,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,152.22 : 864,091.73 = 339,672.31 : x
  2. Step 2: Convert to fraction form
    626,152.22/864,091.73 = 339,672.31/x
  3. Step 3: Cross multiply
    626,152.22x = 864,091.73 × 339,672.31
  4. Step 4: Simplify right side
    626,152.22x = 293,508,031,714.62
  5. Step 5: Solve for x
    x = 293,508,031,714.62/626,152.22
  6. Step 6: Final answer
    x = 468,748.69

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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.