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Finding the Fourth Proportional to 446,431.96, 615,901.62 and 255,343.24

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Solution

The fourth proportional to 446,431.96, 615,901.62 and 255,343.24 is: 352,273.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,431.96 : 615,901.62 = 255,343.24 : x
  2. Step 2: Convert to fraction form
    446,431.96/615,901.62 = 255,343.24/x
  3. Step 3: Cross multiply
    446,431.96x = 615,901.62 × 255,343.24
  4. Step 4: Simplify right side
    446,431.96x = 157,266,315,172.05
  5. Step 5: Solve for x
    x = 157,266,315,172.05/446,431.96
  6. Step 6: Final answer
    x = 352,273.87

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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.