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Finding the Fourth Proportional to 469,808.34, 648,328.52 and 276,237.92

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Solution

The fourth proportional to 469,808.34, 648,328.52 and 276,237.92 is: 381,204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,808.34 : 648,328.52 = 276,237.92 : x
  2. Step 2: Convert to fraction form
    469,808.34/648,328.52 = 276,237.92/x
  3. Step 3: Cross multiply
    469,808.34x = 648,328.52 × 276,237.92
  4. Step 4: Simplify right side
    469,808.34x = 179,092,921,841.48
  5. Step 5: Solve for x
    x = 179,092,921,841.48/469,808.34
  6. Step 6: Final answer
    x = 381,204.22

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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.