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Finding the Fourth Proportional to 400,973.10, 601,621.65 and 176,376.30

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Solution

The fourth proportional to 400,973.10, 601,621.65 and 176,376.30 is: 264,635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,973.10 : 601,621.65 = 176,376.30 : x
  2. Step 2: Convert to fraction form
    400,973.10/601,621.65 = 176,376.30/x
  3. Step 3: Cross multiply
    400,973.10x = 601,621.65 × 176,376.30
  4. Step 4: Simplify right side
    400,973.10x = 106,111,800,626.90
  5. Step 5: Solve for x
    x = 106,111,800,626.90/400,973.10
  6. Step 6: Final answer
    x = 264,635.71

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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.