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Finding the Fourth Proportional to 941,313.72, 1,299,023.04 and 511,593.90

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Solution

The fourth proportional to 941,313.72, 1,299,023.04 and 511,593.90 is: 706,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,313.72 : 1,299,023.04 = 511,593.90 : x
  2. Step 2: Convert to fraction form
    941,313.72/1,299,023.04 = 511,593.90/x
  3. Step 3: Cross multiply
    941,313.72x = 1,299,023.04 × 511,593.90
  4. Step 4: Simplify right side
    941,313.72x = 664,572,263,223.46
  5. Step 5: Solve for x
    x = 664,572,263,223.46/941,313.72
  6. Step 6: Final answer
    x = 706,005.07

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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.