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Finding the Fourth Proportional to 620,575.82, 930,917.16 and 171,296.76

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Solution

The fourth proportional to 620,575.82, 930,917.16 and 171,296.76 is: 256,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,575.82 : 930,917.16 = 171,296.76 : x
  2. Step 2: Convert to fraction form
    620,575.82/930,917.16 = 171,296.76/x
  3. Step 3: Cross multiply
    620,575.82x = 930,917.16 × 171,296.76
  4. Step 4: Simplify right side
    620,575.82x = 159,463,093,336.40
  5. Step 5: Solve for x
    x = 159,463,093,336.40/620,575.82
  6. Step 6: Final answer
    x = 256,959.89

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1.5x scale

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.