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Finding the Fourth Proportional to 461,052.82, 636,255.67 and 257,116.63

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Solution

The fourth proportional to 461,052.82, 636,255.67 and 257,116.63 is: 354,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,052.82 : 636,255.67 = 257,116.63 : x
  2. Step 2: Convert to fraction form
    461,052.82/636,255.67 = 257,116.63/x
  3. Step 3: Cross multiply
    461,052.82x = 636,255.67 × 257,116.63
  4. Step 4: Simplify right side
    461,052.82x = 163,591,913,688.79
  5. Step 5: Solve for x
    x = 163,591,913,688.79/461,052.82
  6. Step 6: Final answer
    x = 354,822.50

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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.