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Finding the Fourth Proportional to 440,866.10, 608,378.37 and 239,662.10

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Solution

The fourth proportional to 440,866.10, 608,378.37 and 239,662.10 is: 330,724.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,866.10 : 608,378.37 = 239,662.10 : x
  2. Step 2: Convert to fraction form
    440,866.10/608,378.37 = 239,662.10/x
  3. Step 3: Cross multiply
    440,866.10x = 608,378.37 × 239,662.10
  4. Step 4: Simplify right side
    440,866.10x = 145,805,237,748.78
  5. Step 5: Solve for x
    x = 145,805,237,748.78/440,866.10
  6. Step 6: Final answer
    x = 330,724.54

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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.