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Finding the Fourth Proportional to 400,626.50, 600,998.94 and 116,280.20

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Solution

The fourth proportional to 400,626.50, 600,998.94 and 116,280.20 is: 174,437.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,626.50 : 600,998.94 = 116,280.20 : x
  2. Step 2: Convert to fraction form
    400,626.50/600,998.94 = 116,280.20/x
  3. Step 3: Cross multiply
    400,626.50x = 600,998.94 × 116,280.20
  4. Step 4: Simplify right side
    400,626.50x = 69,884,273,937.99
  5. Step 5: Solve for x
    x = 69,884,273,937.99/400,626.50
  6. Step 6: Final answer
    x = 174,437.47

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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.