Home / 951,681.20-1,313,356.86-521,979.44

Finding the Fourth Proportional to 951,681.20, 1,313,356.86 and 521,979.44

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Solution

The fourth proportional to 951,681.20, 1,313,356.86 and 521,979.44 is: 720,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,681.20 : 1,313,356.86 = 521,979.44 : x
  2. Step 2: Convert to fraction form
    951,681.20/1,313,356.86 = 521,979.44/x
  3. Step 3: Cross multiply
    951,681.20x = 1,313,356.86 × 521,979.44
  4. Step 4: Simplify right side
    951,681.20x = 685,545,278,302.96
  5. Step 5: Solve for x
    x = 685,545,278,302.96/951,681.20
  6. Step 6: Final answer
    x = 720,351.81

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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.