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Finding the Fourth Proportional to 552,115.20, 828,172.80 and 384,153.60

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Solution

The fourth proportional to 552,115.20, 828,172.80 and 384,153.60 is: 576,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,115.20 : 828,172.80 = 384,153.60 : x
  2. Step 2: Convert to fraction form
    552,115.20/828,172.80 = 384,153.60/x
  3. Step 3: Cross multiply
    552,115.20x = 828,172.80 × 384,153.60
  4. Step 4: Simplify right side
    552,115.20x = 318,145,562,542.08
  5. Step 5: Solve for x
    x = 318,145,562,542.08/552,115.20
  6. Step 6: Final answer
    x = 576,230.40

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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.