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Finding the Fourth Proportional to 313,605.48, 432,775.94 and 170,365.62

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Solution

The fourth proportional to 313,605.48, 432,775.94 and 170,365.62 is: 235,104.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,605.48 : 432,775.94 = 170,365.62 : x
  2. Step 2: Convert to fraction form
    313,605.48/432,775.94 = 170,365.62/x
  3. Step 3: Cross multiply
    313,605.48x = 432,775.94 × 170,365.62
  4. Step 4: Simplify right side
    313,605.48x = 73,730,140,487.35
  5. Step 5: Solve for x
    x = 73,730,140,487.35/313,605.48
  6. Step 6: Final answer
    x = 235,104.76

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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.