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Finding the Fourth Proportional to 440,367.38, 607,703.56 and 239,163.38

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Solution

The fourth proportional to 440,367.38, 607,703.56 and 239,163.38 is: 330,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,367.38 : 607,703.56 = 239,163.38 : x
  2. Step 2: Convert to fraction form
    440,367.38/607,703.56 = 239,163.38/x
  3. Step 3: Cross multiply
    440,367.38x = 607,703.56 × 239,163.38
  4. Step 4: Simplify right side
    440,367.38x = 145,340,437,447.63
  5. Step 5: Solve for x
    x = 145,340,437,447.63/440,367.38
  6. Step 6: Final answer
    x = 330,043.60

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.