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Finding the Fourth Proportional to 391,284.92, 585,860.31 and 296,227.58

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Solution

The fourth proportional to 391,284.92, 585,860.31 and 296,227.58 is: 443,533.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,284.92 : 585,860.31 = 296,227.58 : x
  2. Step 2: Convert to fraction form
    391,284.92/585,860.31 = 296,227.58/x
  3. Step 3: Cross multiply
    391,284.92x = 585,860.31 × 296,227.58
  4. Step 4: Simplify right side
    391,284.92x = 173,547,978,920.05
  5. Step 5: Solve for x
    x = 173,547,978,920.05/391,284.92
  6. Step 6: Final answer
    x = 443,533.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.