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Finding the Fourth Proportional to 520,656.94, 781,002.60 and 179,096.94

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Solution

The fourth proportional to 520,656.94, 781,002.60 and 179,096.94 is: 268,651.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,656.94 : 781,002.60 = 179,096.94 : x
  2. Step 2: Convert to fraction form
    520,656.94/781,002.60 = 179,096.94/x
  3. Step 3: Cross multiply
    520,656.94x = 781,002.60 × 179,096.94
  4. Step 4: Simplify right side
    520,656.94x = 139,875,175,120.43
  5. Step 5: Solve for x
    x = 139,875,175,120.43/520,656.94
  6. Step 6: Final answer
    x = 268,651.32

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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.