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Finding the Fourth Proportional to 445,933.16, 615,384.61 and 241,978.89

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Solution

The fourth proportional to 445,933.16, 615,384.61 and 241,978.89 is: 333,929.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,933.16 : 615,384.61 = 241,978.89 : x
  2. Step 2: Convert to fraction form
    445,933.16/615,384.61 = 241,978.89/x
  3. Step 3: Cross multiply
    445,933.16x = 615,384.61 × 241,978.89
  4. Step 4: Simplify right side
    445,933.16x = 148,910,084,850.88
  5. Step 5: Solve for x
    x = 148,910,084,850.88/445,933.16
  6. Step 6: Final answer
    x = 333,929.16

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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.