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Finding the Fourth Proportional to 297,090.40, 445,693.20 and 149,346.40

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Solution

The fourth proportional to 297,090.40, 445,693.20 and 149,346.40 is: 224,048.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,090.40 : 445,693.20 = 149,346.40 : x
  2. Step 2: Convert to fraction form
    297,090.40/445,693.20 = 149,346.40/x
  3. Step 3: Cross multiply
    297,090.40x = 445,693.20 × 149,346.40
  4. Step 4: Simplify right side
    297,090.40x = 66,562,674,924.48
  5. Step 5: Solve for x
    x = 66,562,674,924.48/297,090.40
  6. Step 6: Final answer
    x = 224,048.56

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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.