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Finding the Fourth Proportional to 636,412.90, 954,883.71 and 257,601.41

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Solution

The fourth proportional to 636,412.90, 954,883.71 and 257,601.41 is: 386,509.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,412.90 : 954,883.71 = 257,601.41 : x
  2. Step 2: Convert to fraction form
    636,412.90/954,883.71 = 257,601.41/x
  3. Step 3: Cross multiply
    636,412.90x = 954,883.71 × 257,601.41
  4. Step 4: Simplify right side
    636,412.90x = 245,979,394,984.15
  5. Step 5: Solve for x
    x = 245,979,394,984.15/636,412.90
  6. Step 6: Final answer
    x = 386,509.13

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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.