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Finding the Fourth Proportional to 573,091.20, 790,819.20 and 343,699.20

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Solution

The fourth proportional to 573,091.20, 790,819.20 and 343,699.20 is: 474,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,091.20 : 790,819.20 = 343,699.20 : x
  2. Step 2: Convert to fraction form
    573,091.20/790,819.20 = 343,699.20/x
  3. Step 3: Cross multiply
    573,091.20x = 790,819.20 × 343,699.20
  4. Step 4: Simplify right side
    573,091.20x = 271,803,926,384.64
  5. Step 5: Solve for x
    x = 271,803,926,384.64/573,091.20
  6. Step 6: Final answer
    x = 474,276.92

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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.