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Finding the Fourth Proportional to 331,007.60, 497,029.80 and 191,039.60

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Solution

The fourth proportional to 331,007.60, 497,029.80 and 191,039.60 is: 286,858.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,007.60 : 497,029.80 = 191,039.60 : x
  2. Step 2: Convert to fraction form
    331,007.60/497,029.80 = 191,039.60/x
  3. Step 3: Cross multiply
    331,007.60x = 497,029.80 × 191,039.60
  4. Step 4: Simplify right side
    331,007.60x = 94,952,374,180.08
  5. Step 5: Solve for x
    x = 94,952,374,180.08/331,007.60
  6. Step 6: Final answer
    x = 286,858.59

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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.