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Finding the Fourth Proportional to 331,337.59, 457,218.90 and 186,135.47

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Solution

The fourth proportional to 331,337.59, 457,218.90 and 186,135.47 is: 256,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,337.59 : 457,218.90 = 186,135.47 : x
  2. Step 2: Convert to fraction form
    331,337.59/457,218.90 = 186,135.47/x
  3. Step 3: Cross multiply
    331,337.59x = 457,218.90 × 186,135.47
  4. Step 4: Simplify right side
    331,337.59x = 85,104,656,685.44
  5. Step 5: Solve for x
    x = 85,104,656,685.44/331,337.59
  6. Step 6: Final answer
    x = 256,851.80

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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.