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Finding the Fourth Proportional to 314,675.70, 434,251.17 and 171,435.30

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Solution

The fourth proportional to 314,675.70, 434,251.17 and 171,435.30 is: 236,580.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,675.70 : 434,251.17 = 171,435.30 : x
  2. Step 2: Convert to fraction form
    314,675.70/434,251.17 = 171,435.30/x
  3. Step 3: Cross multiply
    314,675.70x = 434,251.17 × 171,435.30
  4. Step 4: Simplify right side
    314,675.70x = 74,445,979,604.30
  5. Step 5: Solve for x
    x = 74,445,979,604.30/314,675.70
  6. Step 6: Final answer
    x = 236,580.01

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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.