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Finding the Fourth Proportional to 466,821.12, 644,215.80 and 265,617.12

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Solution

The fourth proportional to 466,821.12, 644,215.80 and 265,617.12 is: 366,553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,821.12 : 644,215.80 = 265,617.12 : x
  2. Step 2: Convert to fraction form
    466,821.12/644,215.80 = 265,617.12/x
  3. Step 3: Cross multiply
    466,821.12x = 644,215.80 × 265,617.12
  4. Step 4: Simplify right side
    466,821.12x = 171,114,745,454.50
  5. Step 5: Solve for x
    x = 171,114,745,454.50/466,821.12
  6. Step 6: Final answer
    x = 366,553.14

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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.