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Finding the Fourth Proportional to 576,028.80, 864,043.20 and 543,369.60

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Solution

The fourth proportional to 576,028.80, 864,043.20 and 543,369.60 is: 815,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,028.80 : 864,043.20 = 543,369.60 : x
  2. Step 2: Convert to fraction form
    576,028.80/864,043.20 = 543,369.60/x
  3. Step 3: Cross multiply
    576,028.80x = 864,043.20 × 543,369.60
  4. Step 4: Simplify right side
    576,028.80x = 469,494,807,966.72
  5. Step 5: Solve for x
    x = 469,494,807,966.72/576,028.80
  6. Step 6: Final answer
    x = 815,054.40

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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.