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Finding the Fourth Proportional to 352,655.60, 486,813.71 and 238,089.43

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Solution

The fourth proportional to 352,655.60, 486,813.71 and 238,089.43 is: 328,664.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,655.60 : 486,813.71 = 238,089.43 : x
  2. Step 2: Convert to fraction form
    352,655.60/486,813.71 = 238,089.43/x
  3. Step 3: Cross multiply
    352,655.60x = 486,813.71 × 238,089.43
  4. Step 4: Simplify right side
    352,655.60x = 115,905,198,730.09
  5. Step 5: Solve for x
    x = 115,905,198,730.09/352,655.60
  6. Step 6: Final answer
    x = 328,664.00

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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.