Home / 837,120.57-1,155,796.89-561,891.22

Finding the Fourth Proportional to 837,120.57, 1,155,796.89 and 561,891.22

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Solution

The fourth proportional to 837,120.57, 1,155,796.89 and 561,891.22 is: 775,792.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,120.57 : 1,155,796.89 = 561,891.22 : x
  2. Step 2: Convert to fraction form
    837,120.57/1,155,796.89 = 561,891.22/x
  3. Step 3: Cross multiply
    837,120.57x = 1,155,796.89 × 561,891.22
  4. Step 4: Simplify right side
    837,120.57x = 649,432,124,594.31
  5. Step 5: Solve for x
    x = 649,432,124,594.31/837,120.57
  6. Step 6: Final answer
    x = 775,792.82

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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.