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Finding the Fourth Proportional to 674,620.67, 930,886.56 and 433,230.21

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Solution

The fourth proportional to 674,620.67, 930,886.56 and 433,230.21 is: 597,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,620.67 : 930,886.56 = 433,230.21 : x
  2. Step 2: Convert to fraction form
    674,620.67/930,886.56 = 433,230.21/x
  3. Step 3: Cross multiply
    674,620.67x = 930,886.56 × 433,230.21
  4. Step 4: Simplify right side
    674,620.67x = 403,288,179,874.98
  5. Step 5: Solve for x
    x = 403,288,179,874.98/674,620.67
  6. Step 6: Final answer
    x = 597,799.92

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1.5x scale

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.