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Finding the Fourth Proportional to 667,424.60, 1,001,039.70 and 194,060.60

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Solution

The fourth proportional to 667,424.60, 1,001,039.70 and 194,060.60 is: 291,062.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,424.60 : 1,001,039.70 = 194,060.60 : x
  2. Step 2: Convert to fraction form
    667,424.60/1,001,039.70 = 194,060.60/x
  3. Step 3: Cross multiply
    667,424.60x = 1,001,039.70 × 194,060.60
  4. Step 4: Simplify right side
    667,424.60x = 194,262,364,805.82
  5. Step 5: Solve for x
    x = 194,262,364,805.82/667,424.60
  6. Step 6: Final answer
    x = 291,062.64

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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.