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Finding the Fourth Proportional to 375,990.04, 518,892.65 and 214,868.89

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Solution

The fourth proportional to 375,990.04, 518,892.65 and 214,868.89 is: 296,534.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,990.04 : 518,892.65 = 214,868.89 : x
  2. Step 2: Convert to fraction form
    375,990.04/518,892.65 = 214,868.89/x
  3. Step 3: Cross multiply
    375,990.04x = 518,892.65 × 214,868.89
  4. Step 4: Simplify right side
    375,990.04x = 111,493,887,734.66
  5. Step 5: Solve for x
    x = 111,493,887,734.66/375,990.04
  6. Step 6: Final answer
    x = 296,534.15

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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.