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Finding the Fourth Proportional to 283,641.48, 391,425.23 and 170,464.23

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Solution

The fourth proportional to 283,641.48, 391,425.23 and 170,464.23 is: 235,240.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,641.48 : 391,425.23 = 170,464.23 : x
  2. Step 2: Convert to fraction form
    283,641.48/391,425.23 = 170,464.23/x
  3. Step 3: Cross multiply
    283,641.48x = 391,425.23 × 170,464.23
  4. Step 4: Simplify right side
    283,641.48x = 66,724,000,860.68
  5. Step 5: Solve for x
    x = 66,724,000,860.68/283,641.48
  6. Step 6: Final answer
    x = 235,240.63

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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.