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Finding the Fourth Proportional to 683,437.43, 943,139.90 and 377,534.86

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Solution

The fourth proportional to 683,437.43, 943,139.90 and 377,534.86 is: 520,996.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,437.43 : 943,139.90 = 377,534.86 : x
  2. Step 2: Convert to fraction form
    683,437.43/943,139.90 = 377,534.86/x
  3. Step 3: Cross multiply
    683,437.43x = 943,139.90 × 377,534.86
  4. Step 4: Simplify right side
    683,437.43x = 356,068,188,692.90
  5. Step 5: Solve for x
    x = 356,068,188,692.90/683,437.43
  6. Step 6: Final answer
    x = 520,996.03

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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.