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Finding the Fourth Proportional to 313,425.07, 432,528.23 and 170,185.07

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Solution

The fourth proportional to 313,425.07, 432,528.23 and 170,185.07 is: 234,856.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,425.07 : 432,528.23 = 170,185.07 : x
  2. Step 2: Convert to fraction form
    313,425.07/432,528.23 = 170,185.07/x
  3. Step 3: Cross multiply
    313,425.07x = 432,528.23 × 170,185.07
  4. Step 4: Simplify right side
    313,425.07x = 73,609,848,606.31
  5. Step 5: Solve for x
    x = 73,609,848,606.31/313,425.07
  6. Step 6: Final answer
    x = 234,856.29

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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.