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Finding the Fourth Proportional to 497,951.76, 687,182.76 and 271,605.36

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Solution

The fourth proportional to 497,951.76, 687,182.76 and 271,605.36 is: 374,820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,951.76 : 687,182.76 = 271,605.36 : x
  2. Step 2: Convert to fraction form
    497,951.76/687,182.76 = 271,605.36/x
  3. Step 3: Cross multiply
    497,951.76x = 687,182.76 × 271,605.36
  4. Step 4: Simplify right side
    497,951.76x = 186,642,520,915.59
  5. Step 5: Solve for x
    x = 186,642,520,915.59/497,951.76
  6. Step 6: Final answer
    x = 374,820.49

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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.