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Finding the Fourth Proportional to 314,863.79, 434,507.60 and 171,624.39

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Solution

The fourth proportional to 314,863.79, 434,507.60 and 171,624.39 is: 236,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,863.79 : 434,507.60 = 171,624.39 : x
  2. Step 2: Convert to fraction form
    314,863.79/434,507.60 = 171,624.39/x
  3. Step 3: Cross multiply
    314,863.79x = 434,507.60 × 171,624.39
  4. Step 4: Simplify right side
    314,863.79x = 74,572,100,942.24
  5. Step 5: Solve for x
    x = 74,572,100,942.24/314,863.79
  6. Step 6: Final answer
    x = 236,839.24

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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.