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Finding the Fourth Proportional to 313,426.58, 432,530.31 and 170,186.58

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Solution

The fourth proportional to 313,426.58, 432,530.31 and 170,186.58 is: 234,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,426.58 : 432,530.31 = 170,186.58 : x
  2. Step 2: Convert to fraction form
    313,426.58/432,530.31 = 170,186.58/x
  3. Step 3: Cross multiply
    313,426.58x = 432,530.31 × 170,186.58
  4. Step 4: Simplify right side
    313,426.58x = 73,610,854,205.24
  5. Step 5: Solve for x
    x = 73,610,854,205.24/313,426.58
  6. Step 6: Final answer
    x = 234,858.37

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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.