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Finding the Fourth Proportional to 331,493.66, 497,387.99 and 173,685.20

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Solution

The fourth proportional to 331,493.66, 497,387.99 and 173,685.20 is: 260,605.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,493.66 : 497,387.99 = 173,685.20 : x
  2. Step 2: Convert to fraction form
    331,493.66/497,387.99 = 173,685.20/x
  3. Step 3: Cross multiply
    331,493.66x = 497,387.99 × 173,685.20
  4. Step 4: Simplify right side
    331,493.66x = 86,388,930,468.02
  5. Step 5: Solve for x
    x = 86,388,930,468.02/331,493.66
  6. Step 6: Final answer
    x = 260,605.08

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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.