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Finding the Fourth Proportional to 427,569.30, 590,020.98 and 236,571.30

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Solution

The fourth proportional to 427,569.30, 590,020.98 and 236,571.30 is: 326,454.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,569.30 : 590,020.98 = 236,571.30 : x
  2. Step 2: Convert to fraction form
    427,569.30/590,020.98 = 236,571.30/x
  3. Step 3: Cross multiply
    427,569.30x = 590,020.98 × 236,571.30
  4. Step 4: Simplify right side
    427,569.30x = 139,582,030,265.87
  5. Step 5: Solve for x
    x = 139,582,030,265.87/427,569.30
  6. Step 6: Final answer
    x = 326,454.75

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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.