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Finding the Fourth Proportional to 355,078.20, 532,617.30 and 322,937.40

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Solution

The fourth proportional to 355,078.20, 532,617.30 and 322,937.40 is: 484,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,078.20 : 532,617.30 = 322,937.40 : x
  2. Step 2: Convert to fraction form
    355,078.20/532,617.30 = 322,937.40/x
  3. Step 3: Cross multiply
    355,078.20x = 532,617.30 × 322,937.40
  4. Step 4: Simplify right side
    355,078.20x = 172,002,046,057.02
  5. Step 5: Solve for x
    x = 172,002,046,057.02/355,078.20
  6. Step 6: Final answer
    x = 484,406.10

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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.