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Finding the Fourth Proportional to 368,892.80, 552,901.80 and 331,276.40

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Solution

The fourth proportional to 368,892.80, 552,901.80 and 331,276.40 is: 496,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,892.80 : 552,901.80 = 331,276.40 : x
  2. Step 2: Convert to fraction form
    368,892.80/552,901.80 = 331,276.40/x
  3. Step 3: Cross multiply
    368,892.80x = 552,901.80 × 331,276.40
  4. Step 4: Simplify right side
    368,892.80x = 183,163,317,857.52
  5. Step 5: Solve for x
    x = 183,163,317,857.52/368,892.80
  6. Step 6: Final answer
    x = 496,521.80

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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.