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Finding the Fourth Proportional to 628,954.60, 943,431.90 and 573,842.20

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Solution

The fourth proportional to 628,954.60, 943,431.90 and 573,842.20 is: 860,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,954.60 : 943,431.90 = 573,842.20 : x
  2. Step 2: Convert to fraction form
    628,954.60/943,431.90 = 573,842.20/x
  3. Step 3: Cross multiply
    628,954.60x = 943,431.90 × 573,842.20
  4. Step 4: Simplify right side
    628,954.60x = 541,381,037,046.18
  5. Step 5: Solve for x
    x = 541,381,037,046.18/628,954.60
  6. Step 6: Final answer
    x = 860,763.30

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Similar ratio
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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.