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Finding the Fourth Proportional to 446,001.72, 615,993.21 and 293,720.63

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Solution

The fourth proportional to 446,001.72, 615,993.21 and 293,720.63 is: 405,670.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,001.72 : 615,993.21 = 293,720.63 : x
  2. Step 2: Convert to fraction form
    446,001.72/615,993.21 = 293,720.63/x
  3. Step 3: Cross multiply
    446,001.72x = 615,993.21 × 293,720.63
  4. Step 4: Simplify right side
    446,001.72x = 180,929,910,636.96
  5. Step 5: Solve for x
    x = 180,929,910,636.96/446,001.72
  6. Step 6: Final answer
    x = 405,670.88

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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.