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Finding the Fourth Proportional to 573,886.60, 859,793.10 and 490,942.60

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Solution

The fourth proportional to 573,886.60, 859,793.10 and 490,942.60 is: 735,526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,886.60 : 859,793.10 = 490,942.60 : x
  2. Step 2: Convert to fraction form
    573,886.60/859,793.10 = 490,942.60/x
  3. Step 3: Cross multiply
    573,886.60x = 859,793.10 × 490,942.60
  4. Step 4: Simplify right side
    573,886.60x = 422,109,059,976.06
  5. Step 5: Solve for x
    x = 422,109,059,976.06/573,886.60
  6. Step 6: Final answer
    x = 735,526.95

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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.