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Finding the Fourth Proportional to 293,640.99, 440,470.59 and 139,734.10

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Solution

The fourth proportional to 293,640.99, 440,470.59 and 139,734.10 is: 209,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,640.99 : 440,470.59 = 139,734.10 : x
  2. Step 2: Convert to fraction form
    293,640.99/440,470.59 = 139,734.10/x
  3. Step 3: Cross multiply
    293,640.99x = 440,470.59 × 139,734.10
  4. Step 4: Simplify right side
    293,640.99x = 61,548,761,470.12
  5. Step 5: Solve for x
    x = 61,548,761,470.12/293,640.99
  6. Step 6: Final answer
    x = 209,605.48

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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.