Home / 820,637.36-1,132,668.51-481,214.96

Finding the Fourth Proportional to 820,637.36, 1,132,668.51 and 481,214.96

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Solution

The fourth proportional to 820,637.36, 1,132,668.51 and 481,214.96 is: 664,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,637.36 : 1,132,668.51 = 481,214.96 : x
  2. Step 2: Convert to fraction form
    820,637.36/1,132,668.51 = 481,214.96/x
  3. Step 3: Cross multiply
    820,637.36x = 1,132,668.51 × 481,214.96
  4. Step 4: Simplify right side
    820,637.36x = 545,057,031,219.35
  5. Step 5: Solve for x
    x = 545,057,031,219.35/820,637.36
  6. Step 6: Final answer
    x = 664,187.45

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1.5x scale

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.