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Finding the Fourth Proportional to 605,343.60, 908,015.40 and 540,025.20

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Solution

The fourth proportional to 605,343.60, 908,015.40 and 540,025.20 is: 810,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,343.60 : 908,015.40 = 540,025.20 : x
  2. Step 2: Convert to fraction form
    605,343.60/908,015.40 = 540,025.20/x
  3. Step 3: Cross multiply
    605,343.60x = 908,015.40 × 540,025.20
  4. Step 4: Simplify right side
    605,343.60x = 490,351,197,988.08
  5. Step 5: Solve for x
    x = 490,351,197,988.08/605,343.60
  6. Step 6: Final answer
    x = 810,037.80

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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.