Home / 843,121.44-1,163,499.12-461,155.68

Finding the Fourth Proportional to 843,121.44, 1,163,499.12 and 461,155.68

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Solution

The fourth proportional to 843,121.44, 1,163,499.12 and 461,155.68 is: 636,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,121.44 : 1,163,499.12 = 461,155.68 : x
  2. Step 2: Convert to fraction form
    843,121.44/1,163,499.12 = 461,155.68/x
  3. Step 3: Cross multiply
    843,121.44x = 1,163,499.12 × 461,155.68
  4. Step 4: Simplify right side
    843,121.44x = 536,554,227,863.00
  5. Step 5: Solve for x
    x = 536,554,227,863.00/843,121.44
  6. Step 6: Final answer
    x = 636,390.21

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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.