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Finding the Fourth Proportional to 583,639.94, 805,435.44 and 328,991.06

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Solution

The fourth proportional to 583,639.94, 805,435.44 and 328,991.06 is: 454,014.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,639.94 : 805,435.44 = 328,991.06 : x
  2. Step 2: Convert to fraction form
    583,639.94/805,435.44 = 328,991.06/x
  3. Step 3: Cross multiply
    583,639.94x = 805,435.44 × 328,991.06
  4. Step 4: Simplify right side
    583,639.94x = 264,981,059,167.17
  5. Step 5: Solve for x
    x = 264,981,059,167.17/583,639.94
  6. Step 6: Final answer
    x = 454,014.61

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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.