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Finding the Fourth Proportional to 461,131.52, 636,362.63 and 257,195.65

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Solution

The fourth proportional to 461,131.52, 636,362.63 and 257,195.65 is: 354,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,131.52 : 636,362.63 = 257,195.65 : x
  2. Step 2: Convert to fraction form
    461,131.52/636,362.63 = 257,195.65/x
  3. Step 3: Cross multiply
    461,131.52x = 636,362.63 × 257,195.65
  4. Step 4: Simplify right side
    461,131.52x = 163,669,700,258.56
  5. Step 5: Solve for x
    x = 163,669,700,258.56/461,131.52
  6. Step 6: Final answer
    x = 354,930.63

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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.