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Finding the Fourth Proportional to 548,688.13, 757,219.04 and 306,956.29

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Solution

The fourth proportional to 548,688.13, 757,219.04 and 306,956.29 is: 423,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,688.13 : 757,219.04 = 306,956.29 : x
  2. Step 2: Convert to fraction form
    548,688.13/757,219.04 = 306,956.29/x
  3. Step 3: Cross multiply
    548,688.13x = 757,219.04 × 306,956.29
  4. Step 4: Simplify right side
    548,688.13x = 232,433,147,235.76
  5. Step 5: Solve for x
    x = 232,433,147,235.76/548,688.13
  6. Step 6: Final answer
    x = 423,616.14

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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.