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Finding the Fourth Proportional to 493,906.41, 740,072.16 and 316,267.20

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Solution

The fourth proportional to 493,906.41, 740,072.16 and 316,267.20 is: 473,896.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,906.41 : 740,072.16 = 316,267.20 : x
  2. Step 2: Convert to fraction form
    493,906.41/740,072.16 = 316,267.20/x
  3. Step 3: Cross multiply
    493,906.41x = 740,072.16 × 316,267.20
  4. Step 4: Simplify right side
    493,906.41x = 234,060,549,841.15
  5. Step 5: Solve for x
    x = 234,060,549,841.15/493,906.41
  6. Step 6: Final answer
    x = 473,896.56

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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.