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Finding the Fourth Proportional to 314,313.64, 433,752.79 and 171,074.73

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Solution

The fourth proportional to 314,313.64, 433,752.79 and 171,074.73 is: 236,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,313.64 : 433,752.79 = 171,074.73 : x
  2. Step 2: Convert to fraction form
    314,313.64/433,752.79 = 171,074.73/x
  3. Step 3: Cross multiply
    314,313.64x = 433,752.79 × 171,074.73
  4. Step 4: Simplify right side
    314,313.64x = 74,204,139,923.93
  5. Step 5: Solve for x
    x = 74,204,139,923.93/314,313.64
  6. Step 6: Final answer
    x = 236,083.10

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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.