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Finding the Fourth Proportional to 540,018.80, 810,028.20 and 532,145.60

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Solution

The fourth proportional to 540,018.80, 810,028.20 and 532,145.60 is: 798,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,018.80 : 810,028.20 = 532,145.60 : x
  2. Step 2: Convert to fraction form
    540,018.80/810,028.20 = 532,145.60/x
  3. Step 3: Cross multiply
    540,018.80x = 810,028.20 × 532,145.60
  4. Step 4: Simplify right side
    540,018.80x = 431,052,942,505.92
  5. Step 5: Solve for x
    x = 431,052,942,505.92/540,018.80
  6. Step 6: Final answer
    x = 798,218.40

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Similar ratio
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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.