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Finding the Fourth Proportional to 375,359.64, 517,990.46 and 214,210.56

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Solution

The fourth proportional to 375,359.64, 517,990.46 and 214,210.56 is: 295,607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,359.64 : 517,990.46 = 214,210.56 : x
  2. Step 2: Convert to fraction form
    375,359.64/517,990.46 = 214,210.56/x
  3. Step 3: Cross multiply
    375,359.64x = 517,990.46 × 214,210.56
  4. Step 4: Simplify right side
    375,359.64x = 110,959,026,511.26
  5. Step 5: Solve for x
    x = 110,959,026,511.26/375,359.64
  6. Step 6: Final answer
    x = 295,607.24

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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.