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Finding the Fourth Proportional to 445,098.90, 667,353.15 and 245,514.90

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Solution

The fourth proportional to 445,098.90, 667,353.15 and 245,514.90 is: 368,109.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,098.90 : 667,353.15 = 245,514.90 : x
  2. Step 2: Convert to fraction form
    445,098.90/667,353.15 = 245,514.90/x
  3. Step 3: Cross multiply
    445,098.90x = 667,353.15 × 245,514.90
  4. Step 4: Simplify right side
    445,098.90x = 163,845,141,886.94
  5. Step 5: Solve for x
    x = 163,845,141,886.94/445,098.90
  6. Step 6: Final answer
    x = 368,109.52

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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.