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Finding the Fourth Proportional to 366,970.45, 550,455.68 and 307,921.45

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Solution

The fourth proportional to 366,970.45, 550,455.68 and 307,921.45 is: 461,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,970.45 : 550,455.68 = 307,921.45 : x
  2. Step 2: Convert to fraction form
    366,970.45/550,455.68 = 307,921.45/x
  3. Step 3: Cross multiply
    366,970.45x = 550,455.68 × 307,921.45
  4. Step 4: Simplify right side
    366,970.45x = 169,497,111,146.34
  5. Step 5: Solve for x
    x = 169,497,111,146.34/366,970.45
  6. Step 6: Final answer
    x = 461,882.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.