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Finding the Fourth Proportional to 827,954.88, 1,141,909.44 and 555,940.80

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Solution

The fourth proportional to 827,954.88, 1,141,909.44 and 555,940.80 is: 766,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,954.88 : 1,141,909.44 = 555,940.80 : x
  2. Step 2: Convert to fraction form
    827,954.88/1,141,909.44 = 555,940.80/x
  3. Step 3: Cross multiply
    827,954.88x = 1,141,909.44 × 555,940.80
  4. Step 4: Simplify right side
    827,954.88x = 634,834,047,601.15
  5. Step 5: Solve for x
    x = 634,834,047,601.15/827,954.88
  6. Step 6: Final answer
    x = 766,749.57

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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.