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Finding the Fourth Proportional to 313,437.82, 432,533.01 and 170,194.90

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Solution

The fourth proportional to 313,437.82, 432,533.01 and 170,194.90 is: 234,862.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,437.82 : 432,533.01 = 170,194.90 : x
  2. Step 2: Convert to fraction form
    313,437.82/432,533.01 = 170,194.90/x
  3. Step 3: Cross multiply
    313,437.82x = 432,533.01 × 170,194.90
  4. Step 4: Simplify right side
    313,437.82x = 73,614,912,383.65
  5. Step 5: Solve for x
    x = 73,614,912,383.65/313,437.82
  6. Step 6: Final answer
    x = 234,862.89

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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.