Home / 678,583.11-1,016,323.89-323,846.25

Finding the Fourth Proportional to 678,583.11, 1,016,323.89 and 323,846.25

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Solution

The fourth proportional to 678,583.11, 1,016,323.89 and 323,846.25 is: 485,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,583.11 : 1,016,323.89 = 323,846.25 : x
  2. Step 2: Convert to fraction form
    678,583.11/1,016,323.89 = 323,846.25/x
  3. Step 3: Cross multiply
    678,583.11x = 1,016,323.89 × 323,846.25
  4. Step 4: Simplify right side
    678,583.11x = 329,132,680,561.91
  5. Step 5: Solve for x
    x = 329,132,680,561.91/678,583.11
  6. Step 6: Final answer
    x = 485,029.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.