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Finding the Fourth Proportional to 554,371.98, 764,976.24 and 409,254.96

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Solution

The fourth proportional to 554,371.98, 764,976.24 and 409,254.96 is: 564,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,371.98 : 764,976.24 = 409,254.96 : x
  2. Step 2: Convert to fraction form
    554,371.98/764,976.24 = 409,254.96/x
  3. Step 3: Cross multiply
    554,371.98x = 764,976.24 × 409,254.96
  4. Step 4: Simplify right side
    554,371.98x = 313,070,320,502.15
  5. Step 5: Solve for x
    x = 313,070,320,502.15/554,371.98
  6. Step 6: Final answer
    x = 564,729.70

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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.