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Finding the Fourth Proportional to 631,932.72, 947,060.64 and 276,559.80

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Solution

The fourth proportional to 631,932.72, 947,060.64 and 276,559.80 is: 414,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,932.72 : 947,060.64 = 276,559.80 : x
  2. Step 2: Convert to fraction form
    631,932.72/947,060.64 = 276,559.80/x
  3. Step 3: Cross multiply
    631,932.72x = 947,060.64 × 276,559.80
  4. Step 4: Simplify right side
    631,932.72x = 261,918,901,186.27
  5. Step 5: Solve for x
    x = 261,918,901,186.27/631,932.72
  6. Step 6: Final answer
    x = 414,472.76

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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.