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Finding the Fourth Proportional to 636,414.45, 954,886.04 and 257,602.97

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Solution

The fourth proportional to 636,414.45, 954,886.04 and 257,602.97 is: 386,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,414.45 : 954,886.04 = 257,602.97 : x
  2. Step 2: Convert to fraction form
    636,414.45/954,886.04 = 257,602.97/x
  3. Step 3: Cross multiply
    636,414.45x = 954,886.04 × 257,602.97
  4. Step 4: Simplify right side
    636,414.45x = 245,981,473,853.09
  5. Step 5: Solve for x
    x = 245,981,473,853.09/636,414.45
  6. Step 6: Final answer
    x = 386,511.45

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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.