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Finding the Fourth Proportional to 552,659.70, 828,989.55 and 384,698.10

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Solution

The fourth proportional to 552,659.70, 828,989.55 and 384,698.10 is: 577,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,659.70 : 828,989.55 = 384,698.10 : x
  2. Step 2: Convert to fraction form
    552,659.70/828,989.55 = 384,698.10/x
  3. Step 3: Cross multiply
    552,659.70x = 828,989.55 × 384,698.10
  4. Step 4: Simplify right side
    552,659.70x = 318,910,704,804.86
  5. Step 5: Solve for x
    x = 318,910,704,804.86/552,659.70
  6. Step 6: Final answer
    x = 577,047.15

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Similar ratio
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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.