Home / 783,900.81-1,081,653.21-461,493.27

Finding the Fourth Proportional to 783,900.81, 1,081,653.21 and 461,493.27

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Solution

The fourth proportional to 783,900.81, 1,081,653.21 and 461,493.27 is: 636,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,900.81 : 1,081,653.21 = 461,493.27 : x
  2. Step 2: Convert to fraction form
    783,900.81/1,081,653.21 = 461,493.27/x
  3. Step 3: Cross multiply
    783,900.81x = 1,081,653.21 × 461,493.27
  4. Step 4: Simplify right side
    783,900.81x = 499,175,676,888.90
  5. Step 5: Solve for x
    x = 499,175,676,888.90/783,900.81
  6. Step 6: Final answer
    x = 636,784.23

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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.