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Finding the Fourth Proportional to 928,917, 1,393,609.68 and 264,069

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Solution

The fourth proportional to 928,917, 1,393,609.68 and 264,069 is: 396,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,917 : 1,393,609.68 = 264,069 : x
  2. Step 2: Convert to fraction form
    928,917/1,393,609.68 = 264,069/x
  3. Step 3: Cross multiply
    928,917x = 1,393,609.68 × 264,069
  4. Step 4: Simplify right side
    928,917x = 368,009,114,587.92
  5. Step 5: Solve for x
    x = 368,009,114,587.92/928,917
  6. Step 6: Final answer
    x = 396,170.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.