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Finding the Fourth Proportional to 610,298.11, 915,599.36 and 430,734.27

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Solution

The fourth proportional to 610,298.11, 915,599.36 and 430,734.27 is: 646,208.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,298.11 : 915,599.36 = 430,734.27 : x
  2. Step 2: Convert to fraction form
    610,298.11/915,599.36 = 430,734.27/x
  3. Step 3: Cross multiply
    610,298.11x = 915,599.36 × 430,734.27
  4. Step 4: Simplify right side
    610,298.11x = 394,380,026,452.40
  5. Step 5: Solve for x
    x = 394,380,026,452.40/610,298.11
  6. Step 6: Final answer
    x = 646,208.83

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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.