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Finding the Fourth Proportional to 386,184.60, 579,276.90 and 176,232.60

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Solution

The fourth proportional to 386,184.60, 579,276.90 and 176,232.60 is: 264,348.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,184.60 : 579,276.90 = 176,232.60 : x
  2. Step 2: Convert to fraction form
    386,184.60/579,276.90 = 176,232.60/x
  3. Step 3: Cross multiply
    386,184.60x = 579,276.90 × 176,232.60
  4. Step 4: Simplify right side
    386,184.60x = 102,087,474,206.94
  5. Step 5: Solve for x
    x = 102,087,474,206.94/386,184.60
  6. Step 6: Final answer
    x = 264,348.90

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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.