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Finding the Fourth Proportional to 602,388.56, 831,234.60 and 360,664.86

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Solution

The fourth proportional to 602,388.56, 831,234.60 and 360,664.86 is: 497,680.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,388.56 : 831,234.60 = 360,664.86 : x
  2. Step 2: Convert to fraction form
    602,388.56/831,234.60 = 360,664.86/x
  3. Step 3: Cross multiply
    602,388.56x = 831,234.60 × 360,664.86
  4. Step 4: Simplify right side
    602,388.56x = 299,797,110,636.16
  5. Step 5: Solve for x
    x = 299,797,110,636.16/602,388.56
  6. Step 6: Final answer
    x = 497,680.62

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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.