Home / 445,905.62-615,860.78-293,624.54

Finding the Fourth Proportional to 445,905.62, 615,860.78 and 293,624.54

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Solution

The fourth proportional to 445,905.62, 615,860.78 and 293,624.54 is: 405,538.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,905.62 : 615,860.78 = 293,624.54 : x
  2. Step 2: Convert to fraction form
    445,905.62/615,860.78 = 293,624.54/x
  3. Step 3: Cross multiply
    445,905.62x = 615,860.78 × 293,624.54
  4. Step 4: Simplify right side
    445,905.62x = 180,831,833,684.12
  5. Step 5: Solve for x
    x = 180,831,833,684.12/445,905.62
  6. Step 6: Final answer
    x = 405,538.36

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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.