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Finding the Fourth Proportional to 386,606.00, 533,490.64 and 214,513.05

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Solution

The fourth proportional to 386,606.00, 533,490.64 and 214,513.05 is: 296,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,606.00 : 533,490.64 = 214,513.05 : x
  2. Step 2: Convert to fraction form
    386,606.00/533,490.64 = 214,513.05/x
  3. Step 3: Cross multiply
    386,606.00x = 533,490.64 × 214,513.05
  4. Step 4: Simplify right side
    386,606.00x = 114,440,703,260.29
  5. Step 5: Solve for x
    x = 114,440,703,260.29/386,606.00
  6. Step 6: Final answer
    x = 296,013.78

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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.