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Finding the Fourth Proportional to 364,690.82, 547,280.52 and 128,034.20

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Solution

The fourth proportional to 364,690.82, 547,280.52 and 128,034.20 is: 192,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,690.82 : 547,280.52 = 128,034.20 : x
  2. Step 2: Convert to fraction form
    364,690.82/547,280.52 = 128,034.20/x
  3. Step 3: Cross multiply
    364,690.82x = 547,280.52 × 128,034.20
  4. Step 4: Simplify right side
    364,690.82x = 70,070,623,553.78
  5. Step 5: Solve for x
    x = 70,070,623,553.78/364,690.82
  6. Step 6: Final answer
    x = 192,137.06

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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.