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Finding the Fourth Proportional to 313,617.69, 432,775.98 and 170,377.29

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Solution

The fourth proportional to 313,617.69, 432,775.98 and 170,377.29 is: 235,111.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,617.69 : 432,775.98 = 170,377.29 : x
  2. Step 2: Convert to fraction form
    313,617.69/432,775.98 = 170,377.29/x
  3. Step 3: Cross multiply
    313,617.69x = 432,775.98 × 170,377.29
  4. Step 4: Simplify right side
    313,617.69x = 73,735,198,649.49
  5. Step 5: Solve for x
    x = 73,735,198,649.49/313,617.69
  6. Step 6: Final answer
    x = 235,111.73

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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.