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Finding the Fourth Proportional to 577,515.60, 866,338.20 and 178,153.20

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Solution

The fourth proportional to 577,515.60, 866,338.20 and 178,153.20 is: 267,249.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,515.60 : 866,338.20 = 178,153.20 : x
  2. Step 2: Convert to fraction form
    577,515.60/866,338.20 = 178,153.20/x
  3. Step 3: Cross multiply
    577,515.60x = 866,338.20 × 178,153.20
  4. Step 4: Simplify right side
    577,515.60x = 154,340,922,612.24
  5. Step 5: Solve for x
    x = 154,340,922,612.24/577,515.60
  6. Step 6: Final answer
    x = 267,249.79

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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.