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Finding the Fourth Proportional to 529,287.30, 793,978.48 and 150,213.78

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Solution

The fourth proportional to 529,287.30, 793,978.48 and 150,213.78 is: 225,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,287.30 : 793,978.48 = 150,213.78 : x
  2. Step 2: Convert to fraction form
    529,287.30/793,978.48 = 150,213.78/x
  3. Step 3: Cross multiply
    529,287.30x = 793,978.48 × 150,213.78
  4. Step 4: Simplify right side
    529,287.30x = 119,266,508,719.45
  5. Step 5: Solve for x
    x = 119,266,508,719.45/529,287.30
  6. Step 6: Final answer
    x = 225,334.16

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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.