Home / 666,582.67-919,622.33-387,132.29

Finding the Fourth Proportional to 666,582.67, 919,622.33 and 387,132.29

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Solution

The fourth proportional to 666,582.67, 919,622.33 and 387,132.29 is: 534,090.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,582.67 : 919,622.33 = 387,132.29 : x
  2. Step 2: Convert to fraction form
    666,582.67/919,622.33 = 387,132.29/x
  3. Step 3: Cross multiply
    666,582.67x = 919,622.33 × 387,132.29
  4. Step 4: Simplify right side
    666,582.67x = 356,015,498,548.04
  5. Step 5: Solve for x
    x = 356,015,498,548.04/666,582.67
  6. Step 6: Final answer
    x = 534,090.54

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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.