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Finding the Fourth Proportional to 573,828.60, 859,706.10 and 490,884.60

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Solution

The fourth proportional to 573,828.60, 859,706.10 and 490,884.60 is: 735,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,828.60 : 859,706.10 = 490,884.60 : x
  2. Step 2: Convert to fraction form
    573,828.60/859,706.10 = 490,884.60/x
  3. Step 3: Cross multiply
    573,828.60x = 859,706.10 × 490,884.60
  4. Step 4: Simplify right side
    573,828.60x = 422,016,485,016.06
  5. Step 5: Solve for x
    x = 422,016,485,016.06/573,828.60
  6. Step 6: Final answer
    x = 735,439.96

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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.