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Finding the Fourth Proportional to 611,692.32, 844,135.11 and 339,785.46

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Solution

The fourth proportional to 611,692.32, 844,135.11 and 339,785.46 is: 468,903.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,692.32 : 844,135.11 = 339,785.46 : x
  2. Step 2: Convert to fraction form
    611,692.32/844,135.11 = 339,785.46/x
  3. Step 3: Cross multiply
    611,692.32x = 844,135.11 × 339,785.46
  4. Step 4: Simplify right side
    611,692.32x = 286,824,836,653.50
  5. Step 5: Solve for x
    x = 286,824,836,653.50/611,692.32
  6. Step 6: Final answer
    x = 468,903.77

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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.