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Finding the Fourth Proportional to 639,016.80, 958,525.20 and 544,028.10

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Solution

The fourth proportional to 639,016.80, 958,525.20 and 544,028.10 is: 816,042.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,016.80 : 958,525.20 = 544,028.10 : x
  2. Step 2: Convert to fraction form
    639,016.80/958,525.20 = 544,028.10/x
  3. Step 3: Cross multiply
    639,016.80x = 958,525.20 × 544,028.10
  4. Step 4: Simplify right side
    639,016.80x = 521,464,643,358.12
  5. Step 5: Solve for x
    x = 521,464,643,358.12/639,016.80
  6. Step 6: Final answer
    x = 816,042.15

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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.